| 单词 | topological |
| 例句 | Because it’s a topological map, you are in a universe where the spaces between points don’t matter and all that counts is the sequence of stops and where the lines cross. The London Eye Mystery 2007-01-01T00:00:00Z A topological map is a very simplified map, not to scale, so with no relation to the real distances. The London Eye Mystery 2007-01-01T00:00:00Z Yet violence remains front and center in her recent photographs at Shainman, which add up to a topological survey map of death on the streets of New Orleans. Art in Review: DEBORAH LUSTER: ?Tooth for an Eye? 2011-01-20T22:45:02Z And a second vitrine introduces an entirely new subject — the landscape! — in colorful topological studies commissioned by Travel & Leisure, which invited several artists to depict one of the 50 states. Elizabeth Murray: A Singular Style, Steeped in Many 2017-01-05T05:00:00Z The pillowy, wire-frame structure turns in space like a dragon — created to appear like a topological diagram of continuous curves from a math book. Furniture Design’s Brave New Present 2017-12-05T05:00:00Z It's hard not to feel that they were seeking a topological solution to problems that were not topological. The Letters of TS Eliot: Volume 4, 1928-1929 – review 2013-01-10T11:00:01Z “Under the Laurentide” uses a huge piece of Chelmsford granite intricately sculpted to show a topological map of the bottom of Narragansett Bay. Where to See — Really See — the Art of Maya Lin 2017-10-20T04:00:00Z Instead, we sense vulnerable and violent connections between stories about topological and sexual trauma. ‘Between Bodies’ at Henry Art Gallery asks us to consider the natural world through different lenses 2019-01-01T05:00:00Z "Notably, Co3Sn2S2 is classified as a topological material and exhibits a remarkable anomalous Hall effect when it transitions to a ferromagnetic state due to its distinctive electronic structure." Topological materials open a new pathway for exploring spin hall materials 2023-09-21T04:00:00Z As it turns out, Earth’s rotation deflects the flow of fluids in a way that’s analogous to how magnetic fields twist the paths of electrons moving through quantum materials called topological insulators. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z The band structure of certain crystals defines a class of materials known as topological. Physicists Make Matter out of Light to Find Quantum Singularities 2023-06-18T04:00:00Z “To get into that game — to be even a contender for a topological quantum computer — the first step you need to take is to create such a state,” he says. Physicists Create Long-Sought Topological Quantum States 2023-05-10T04:00:00Z The technique aims to exploit ‘topological states’ to make qubits robust to degradation, just like a knotted string that can be twisted and pulled but not untied. Underdog Technologies Gain Ground in Quantum-Computing Race 2023-02-13T05:00:00Z Researchers are working on teaching computers better ways of identifying shapes and patterns in data using a tool called topological data analysis, which relies on the mathematics of bendable shapes. 6 Marvelous Math Stories from 2022 2022-12-12T05:00:00Z If you imagine the planet as a giant topological insulator, they said, you can explain the origin of the equatorial Kelvin waves. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z Topological materials have topological properties hidden in their band structure that similarly allow some kind of transformation while preserving something essential. Physicists Make Matter out of Light to Find Quantum Singularities 2023-06-18T04:00:00Z These engineered crystal lattices transport sound in highly unusual, nonreciprocal ways, reminiscent of how electrons travel with unique features in topological insulators. Engineered Metamaterials Can Trick Light and Sound into Mind-Bending Behavior 2022-11-18T05:00:00Z In 2020, researchers observed the basic physical mechanism for one kind of topological protection, and they are now working on demonstrating the first topological qubits. Underdog Technologies Gain Ground in Quantum-Computing Race 2023-02-13T05:00:00Z Like the formation of constellations from stars, topological data analysis helps mathematicians build revealing shapes from scattered dots. How Squishy Math Is Revealing Doughnuts in the Brain 2022-09-26T04:00:00Z Now, in a new preprint, a team of scientists describes the direct measurement of twisting atmospheric waves — the exact kind of evidence needed to bolster the topological theory. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z These topological properties can lead to measurable effects. Physicists Make Matter out of Light to Find Quantum Singularities 2023-06-18T04:00:00Z The new phase is one of many within a family of so-called topological phases, which were first identified in the 1980s. New Phase of Matter Opens Portal to Extra Time Dimension 2022-07-26T04:00:00Z People also realized that anyons could be useful as ways of storing information—and that this could potentially be produced on an industrial scale—giving rise to the field of “topological quantum computing.” God, Dark Matter and Falling Cats: A Conversation with 2022 Templeton Prize Winner Frank Wilczek 2022-05-11T04:00:00Z They study these structures using a topological perspective—looking for features that are preserved even if the scaffolding is stretched or bent. How Squishy Math Is Revealing Doughnuts in the Brain 2022-09-26T04:00:00Z “This is a direct confirmation of these topological ideas, gleaned from actual observations,” said Brad Marston, a physicist at Brown University and an author of the new paper. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z For instance, some topological materials allow electrons to flow only around their edges and not through their interior. Physicists Make Matter out of Light to Find Quantum Singularities 2023-06-18T04:00:00Z To create the more error-proof quantum material, Potter’s team looked to topological phases. New Phase of Matter Opens Portal to Extra Time Dimension 2022-07-26T04:00:00Z Certain topological requirements have to be met, too. Perspective | Did you get a speed camera ticket? You can’t say you weren’t warned. 2022-04-25T04:00:00Z Mathematicians and scientists are now working together to find unusual topological shapes in a vast range of data, representing anything from biological processes with daily rhythms to the structure of drug molecules. How Squishy Math Is Revealing Doughnuts in the Brain 2022-09-26T04:00:00Z And here’s where the story begins for the second time, with the relatively recent discovery of the quantum behavior of electrons in topological insulators. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z I have become particularly interested in certain kinds of topological material: those that are two-dimensional. Physicists Make Matter out of Light to Find Quantum Singularities 2023-06-18T04:00:00Z Thus, Autti says, “Dynamics with topological protection is a major technological goal.” New Phase of Matter Opens Portal to Extra Time Dimension 2022-07-26T04:00:00Z The most popular error correction codes are called topological quantum codes. How to Fix Quantum Computing Bugs 2022-04-19T04:00:00Z There are many ways to do this, but a team led by Guowei Wei of Michigan State University chose to reduce molecules to their “topological signatures.” How Squishy Math Is Revealing Doughnuts in the Brain 2022-09-26T04:00:00Z By some trick of physics, the topological twists in the interior translated into an edge current that flowed without dissipating. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z But its topological properties don’t change, even though its geometry does. Math in 3-D: Q&A with Abel Prize Winner Dennis Sullivan 2022-04-05T04:00:00Z These two properties, which collectively go by the name “functoriality,” suggest that the fundamental group captures some essential information about topological spaces. Infinity Category Theory Offers a Bird’s-Eye View of Mathematics 2021-09-14T04:00:00Z This system marks the birth of topological codes—and with it, another connection between condensed matter physics and quantum error correction. How to Fix Quantum Computing Bugs 2022-04-19T04:00:00Z This is the description of the chemical based on its topological characteristics—essentially the collection of information gained through persistent homology, such as the number of stubborn holes in each dimension. How Squishy Math Is Revealing Doughnuts in the Brain 2022-09-26T04:00:00Z When Marston and his colleagues looked at Earth’s equatorial Kelvin waves, they saw a regularity that made them wonder if the waves were analogous to the edge current in a topological insulator. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z According to CMI, the Poincaré conjecture focuses on a topological question about whether spheres with three-dimensional surfaces are “essentially characterized” by a property called “simple connectivity.” The Top Unsolved Questions in Mathematics Remain Mostly Mysterious 2021-05-28T04:00:00Z In the category of topological spaces, the categorical notion of isomorphism is represented by an inverse pair of continuous functions. Infinity Category Theory Offers a Bird’s-Eye View of Mathematics 2021-09-14T04:00:00Z Because noise is expected to act locally on the lattice, and topological codes have localized excitations, they quickly became the favorite scheme to protect quantum information. How to Fix Quantum Computing Bugs 2022-04-19T04:00:00Z Many of these applications of topological data analysis are only possible because of powerful new computational tools. How Squishy Math Is Revealing Doughnuts in the Brain 2022-09-26T04:00:00Z In the planetary version of a topological insulator, equatorial Kelvin waves are like the current flowing at a quantum material’s edge. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z His new kind of double-sided map, crafted with Dr. Goldberg and Robert Vanderbei, a mathematician at Princeton, skips the topological violence entirely. Can This New Map Fix Our Distorted Views of the World? 2021-02-24T05:00:00Z It’s composed of inflatable habitats, which are currently being developed by NASA, and an endoskeleton and exoskeleton created using topological optimization as the guiding principal. 'Midnight Sky' design blends 'tragic destruction, otherworldly sense of what’s possible' 2021-01-29T05:00:00Z Two examples of topological codes are called the surface code and the color code. How to Fix Quantum Computing Bugs 2022-04-19T04:00:00Z The generated magnetic field leads to an extra signal in voltage measurements — known as Hall measurements — that is induced by a physical phenomenon called the topological Hall effect4,5. Inductors enter the world of quantum mechanics 2020-10-06T04:00:00Z Venaille even thinks the topological description might explain why Earth’s equatorial Kelvin waves seem surprisingly strong, even in the face of turbulence and chaos — our planet’s erratic weather. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z Anyons and similar ‘topological phases’ are now seen as a possible platform for building future quantum computers. Vaughan Jones (1952–2020) 2020-09-28T04:00:00Z “I knew it would make a splash,” says Simon of his description of this topological effect, called a ‘winding number’. Daily briefing: Satellites discover more emperor penguins 2020-08-04T04:00:00Z Barry Simon helped to lay the foundations for topological physics.Credit: The mathematician who helped to reshape physics 2020-08-03T04:00:00Z Given the complex nature of such spin structures, this voltage signal offers a convenient way to explore topological magnetic states in a wide range of materials6,7. Inductors enter the world of quantum mechanics 2020-10-06T04:00:00Z They stand up to perturbations, he explained, in the same way that the edge current of a topological insulator flows without dissipating and with no regard for impurities in the material. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z His invention, which became known as the Jones polynomial, seeded some of the ideas that physicists later developed into the emerging field of topological quantum computing. Vaughan Jones (1952–2020) 2020-09-28T04:00:00Z And because the fractional statistics is ‘topological’ — it depends on the number of times an anyon went around another, not on slight changes to its path — it is unaffected by tiny perturbations. Welcome anyons! Physicists find best evidence yet for long-sought 2D structures 2020-07-02T04:00:00Z “That would mean somebody made a topological quantum computer.” Daily briefing: How transgenic animal models are advancing the fight against coronavirus 2020-03-09T04:00:00Z Of particular relevance to the current work are exotic materials known as topological insulators4. Quantum cascade laser lives on the edge 2020-02-11T05:00:00Z Despite the theoretical work, the connection between topological systems and Earth’s equatorial waves was still indirect. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z This makes topological insulators ideal platforms for generating excitations known as Majorana zero modes, which are the basis for a topological approach to quantum computing5. Magnetic and topological order united in a crystal 2019-12-17T05:00:00Z In another 20 years, it might be ‘graphene’ or ‘topological materials’. Tomorrow’s industries: from OLEDs to nanomaterials 2019-12-10T05:00:00Z Microsoft Quantum, a multinational team, is attempting to use exotic, ‘topological particles’ in extremely thin semiconductors to construct qubits that are much more robust than today’s quantum systems. Beyond quantum supremacy: the hunt for useful quantum computers 2019-10-01T04:00:00Z This robustness of edge states is a manifestation of the overall topological properties of the material. Quantum cascade laser lives on the edge 2020-02-11T05:00:00Z To confirm that on the largest scale, Earth’s fluids behave like electrons in a topological insulator, the team needed to find topologically twisted waves somewhere farther from the equator. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z The two current papers demonstrate that crystalline manganese bismuth telluride manages to combine these seemingly incompatible magnetic and topological orders. Magnetic and topological order united in a crystal 2019-12-17T05:00:00Z Quantum computing, a fledgling technology based on the laws of quantum mechanics, might benefit from an emerging class called topological materials, whose electronic structures impart unusual properties. Tomorrow’s industries: from OLEDs to nanomaterials 2019-12-10T05:00:00Z However, the effectiveness of this approach depends heavily on the structure of the social network, because the topological characteristics of networks strongly shape their resilience to random failures or targeted attacks. Strategies for combating online hate 2019-08-20T04:00:00Z Translating topological protection into the optical domain opens up the possibility of making robust optical systems. Quantum cascade laser lives on the edge 2020-02-11T05:00:00Z Researchers are studying topology in fluids from magnetized plasmas to collections of self-propelled particles; Delplace and Venaille are wondering whether the dynamics of stellar plasma might also resemble a topological insulator. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z The combination of magnetic and topological behaviour observed in the current papers could lead to new spin-based electronic devices, because the topological aspects might, for example, improve how materials transport spin currents. Magnetic and topological order united in a crystal 2019-12-17T05:00:00Z With this new fridge, the team will look at other iron based materials at low temperatures for sustained periods of time and also continue working with materials known as topological semimetals, such as ZrSiS. Racing toward Absolute Zero 2019-08-16T04:00:00Z They were looking for signs that samarium hexaboride exhibits quantum behavior, an important aspect of proving that a material is, indeed, a topological insulator. Quirky Quantum Tunneling Observed 2019-07-09T04:00:00Z Robustness against defects and disorder is one defining characteristic of topological physics, but another important feature is a type of asymmetry called chirality. Quantum cascade laser lives on the edge 2020-02-11T05:00:00Z But this time, he considered them from a topological perspective. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z An ordered arrangement of magnetic moments in a material normally prevents the formation of another kind of electronic order associated with an exotic state of matter known as a topological insulator. Magnetic and topological order united in a crystal 2019-12-17T05:00:00Z A similar effect in 3D systems allows some materials called topological insulators to be — despite their names — perfect conductors on their outer edges while the bulk of the material is insulating. Strange topological materials are popping up everywhere physicists look 2019-07-02T04:00:00Z A priori, groups are abstract, but geometric group theorists explore ways they can be understood as more tangible geometric and topological objects or through the way they can act on geometric spaces. A Journey through Gromov's Gap 2019-05-18T04:00:00Z Realizing this chirality represents a crucial future step towards terahertz topological lasers in which light waves flow around a ring resonator in only one direction. Quantum cascade laser lives on the edge 2020-02-11T05:00:00Z It’s still unclear whether, in the biggest picture, treating Earth as a topological insulator will unlock the mysteries of large-scale weather patterns, or maybe even lead to new geophysical discoveries. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z The complex layered structure of alternating magnetic and topologically non-trivial regions in this material leads to an intriguing and potentially technologically useful interplay between magnetic and topological order. Magnetic and topological order united in a crystal 2019-12-17T05:00:00Z ‘Strongly topological’ materials that harbour these robust effects are seen to be promising as thermoelectric materials, which convert heat into electricity. Strange topological materials are popping up everywhere physicists look 2019-07-02T04:00:00Z The answer lay in the existence of vortices, topological excitations that had hitherto been largely overlooked. David J. Thouless (1934-2019) 2019-05-01T04:00:00Z The topological nature of these edge states renders the laser robust against fabrication imperfections. Quantum cascade laser lives on the edge 2020-02-11T05:00:00Z Later, other physicists reinterpreted his discovery as having a topological explanation, which ended up revealing a host of new quantum phenomena and phases of matter. Quantum Physics Can Explain Earth’s Weather 2023-08-24T04:00:00Z When cooled, the material becomes magnetic, and yet displays a kind of topological insulating behaviour. Magnetic and topological order united in a crystal 2019-12-17T05:00:00Z Among them are electron states that are protected from small perturbations, but aren’t quite as robust as strongly topological states. Strange topological materials are popping up everywhere physicists look 2019-07-02T04:00:00Z This work established the conceptual framework that would eventually allow topological insulators to be discovered. David J. Thouless (1934-2019) 2019-05-01T04:00:00Z It is this triangular cavity that, along with the light amplification from the substrate material, forms a topological laser. Quantum cascade laser lives on the edge 2020-02-11T05:00:00Z Irrespective of whether or not such polar-skyrmion bubbles ultimately translate into new technologies, Das and colleagues’ work will kindle further excitement in the emergent study of topological ferroelectrics. Electrifying skyrmion bubbles 2019-04-16T04:00:00Z This Dirac cone is the distinguishing feature of the surface of a topological insulator, and its disappearance is a sign that the surface has been converted from conducting to insulating. Magnetic and topological order united in a crystal 2019-12-17T05:00:00Z As the field varied, they recorded electrons moving at the edge of the device, as expected in topological insulators. Strange topological materials are popping up everywhere physicists look 2019-07-02T04:00:00Z More than two decades since its publication, it is more relevant to our modern understanding of topological phases of matter than ever. David J. Thouless (1934-2019) 2019-05-01T04:00:00Z He and his collaborators also explained the quantum Hall effect — in which a material’s electrical resistance varies in discrete steps — as another type of topological persistence. New hominin species, asteroid explosion and Sydney Brenner dies 2019-04-09T04:00:00Z This goes back to the weather and topological features of the states, among other things. West Virginia editorial roundup 2019-04-03T04:00:00Z Manganese bismuth telluride can be viewed as a stack of magnetic manganese telluride layers that are separated by layers of a benchmark topological insulator, bismuth telluride7. Magnetic and topological order united in a crystal 2019-12-17T05:00:00Z The unusual properties of topological systems offer new possibilities for materials engineering, including the design of energy-efficient transistors and circuits. Data mining uncovers a treasure trove of topological materials 2019-02-26T05:00:00Z We hear about a leap forward in the search for topological materials. Podcast: tropical cuckoo parasitism, topological materials, and cannabinoids in yeast 2019-02-26T05:00:00Z Disappointingly, so far only a handful of topological materials have been made and their properties verified. Beware of plausible predictions of fantasy materials 2019-02-26T05:00:00Z One type of gapped phase that will surely be the target of future work is ‘topological’ matter. A traffic jam of light 2019-02-05T05:00:00Z The conducting surfaces of the topological insulator are susceptible to externally applied or intrinsic magnetic fields, because such fields break time-reversal symmetry. Magnetic and topological order united in a crystal 2019-12-17T05:00:00Z The topological insulator had near-perfect conduction at its surface edges thanks to a phenomenon called the quantum spin Hall effect. Shoucheng Zhang (1963–2018) 2019-01-22T05:00:00Z Atiyah was a pioneer of the field of index theory, which he called “a bit of black magic” that used topological tools to understand differential equations. Daily briefing: Give scientists time to think, says Nobel-winning physicist Donna Strickland 2019-01-13T05:00:00Z In the past year or so, some researchers1–3 have extended such ideas to identify the organization of atoms in crystals that seem likely to deliver topological properties, using a version of matter-by-design. Beware of plausible predictions of fantasy materials 2019-02-26T05:00:00Z The study indicated that this method might provide a controllable way to switch between the different topological phases. Topological properties controlled by light 2019-01-01T05:00:00Z Steps on the surface of an antiferromagnetic topological insulator produce the same perfectly conducting edge channels as in the QAHE. Magnetic and topological order united in a crystal 2019-12-17T05:00:00Z He was widely expected to share a Nobel Prize in Physics for his role in the prediction and discovery of the first topological insulator, made of bilayers of the semiconductors cadmium telluride and mercury telluride. Shoucheng Zhang (1963–2018) 2019-01-22T05:00:00Z If Earth passes through one of these ‘topological defects’, shifts in the clocks’ workings might indicate that dark matter is an artefact of space-time wrinkles that formed as the early Universe cooled. Daily briefing: Chemist sent mercenaries to save her PhD student from ISIS 2018-12-13T05:00:00Z Dozens of other such examples of predicted topological attributes in unstable structures can be found in the topological literature10. Beware of plausible predictions of fantasy materials 2019-02-26T05:00:00Z These endeavours and others will surely accelerate a fruitful era of topological materials and the control of these materials for applications. Topological properties controlled by light 2019-01-01T05:00:00Z Consider adding such antiferromagnetism to a topological insulator. Magnetic and topological order united in a crystal 2019-12-17T05:00:00Z These are states with a form of topological order that results in a single electron breaking up into a set of emergent particles, each of which carries a fraction of the electron charge. Shoucheng Zhang (1963–2018) 2019-01-22T05:00:00Z Topology pioneer Theoretical physicist Shoucheng Zhang, a pioneer in the study of topological states of matter, died on 1 December, aged 55. Imprisoned academics, China’s Moon lander and AI moral code 2018-12-11T05:00:00Z Materials scientists cannot tell yet how many of the predicted thousands of topological properties do not exist in realizable materials. Beware of plausible predictions of fantasy materials 2019-02-26T05:00:00Z Zhang was among the first to describe ‘topological insulators’ — materials long known to be insulators yet which are able to conduct electricity on their outer surface. Daily briefing: Subterranean biosphere contains billions of tonnes of life 2018-12-10T05:00:00Z Zhang also continued to develop ideas on other topological states of matter, including ‘Majorana states’, because they mimic the behaviour of elementary particles — first hypothesized by Italian physicist Ettore Majorana — that are their own antiparticles. Renowned pioneer of topological physics dies 2018-12-07T05:00:00Z Shoucheng Zhang’s pioneering work helped to launch a new branch of physics devoted to a class of materials called topological insulators. Shoucheng Zhang (1963–2018) 2019-01-22T05:00:00Z These features are described by the mathematics of topology, and the materials are dubbed topological insulators. Imprisoned academics, China’s Moon lander and AI moral code 2018-12-11T05:00:00Z If the hypothetical topological structure is thermodynamically unstable, the symmetry that confers the magic properties might be lost. Beware of plausible predictions of fantasy materials 2019-02-26T05:00:00Z The authors concluded by wondering if the same topological ideas about curvature might apply to general relativity. This Is the Way the Paper Crumples 2018-11-26T05:00:00Z Prof Thomson says it will help researchers understand exactly how these new topological photonic systems work - and what their limitations and advantages are. Researchers create 'crystal maze' for light 2018-11-04T04:00:00Z Conceptually, he played a leading part in mapping a taxonomy of the various ‘species’ of topological insulator. Shoucheng Zhang (1963–2018) 2019-01-22T05:00:00Z When a topological insulator contacts a conventional insulator, the interface between them is inevitably conducting. Pushing the Boundaries in Quantum Electronics 2018-11-03T04:00:00Z But this case exemplifies a broader category of would-be topological materials in which the natural formation of defects can be fatal to topology. Beware of plausible predictions of fantasy materials 2019-02-26T05:00:00Z Charles Kane and Eugene Mele at the University of Pennsylvania in Philadelphia won the fundamental-physics prize for their work predicting the existence of a type of exotic material known as a topological insulator. Medical chimps’ retirement, Nobel laureates’ Brexit warning and science mega-prizes 2018-10-23T04:00:00Z Specifically, a topological phase transition, which is essentially an exotic phase of matter in a magnetic lattice. Thursday briefing: Mental exercises to become a better presenter 2018-08-22T04:00:00Z He identified a key feature of electronic structure — band inversion — that is central to transforming normal insulators into topological ones under certain conditions. Shoucheng Zhang (1963–2018) 2019-01-22T05:00:00Z What the interior of the topological insulator does is to effectively create a conductor that is split into spatially separate parts that move in opposite directions. Pushing the Boundaries in Quantum Electronics 2018-11-03T04:00:00Z But magnetism can alter the energy states and symmetries of a material, and thus its topological properties. Beware of plausible predictions of fantasy materials 2019-02-26T05:00:00Z However, at non-zero temperatures, features known as topological defects emerge. Topological phenomena explored in a programmable quantum simulation 2018-08-21T04:00:00Z What we were trying to investigate with this experiment is the onset of what’s called a topological phase transition. Listen: How D-Wave’s quantum machine could help exotic physics 2018-08-21T04:00:00Z ‘Emergent Majorana modes’ are predicted to occur at the edges of topological superconductors — cousins of topological insulators. Shoucheng Zhang (1963–2018) 2019-01-22T05:00:00Z While applications remain in the future, there are medium and long-term goals for developing useful devices using topological insulators. Pushing the Boundaries in Quantum Electronics 2018-11-03T04:00:00Z The surface of a topological insulator, as seen under a scanning tunnelling microscope.Credit: Beware of plausible predictions of fantasy materials 2019-02-26T05:00:00Z A third group—including Vishwanath—also found hundreds of topological materials, many of which they deem promising. Thousands of Exotic "Topological" Materials Discovered Through Sweeping Search 2018-08-11T04:00:00Z The D-Wave computer was able to simulate the topological phase transition in a material, getting the same results as a classical computer. Listen: How D-Wave’s quantum machine could help exotic physics 2018-08-21T04:00:00Z This behaviour reflects beautiful, albeit somewhat abstract, topological properties of the materials’ electronic states. Topological states engineered in narrow strips of graphene 2018-08-07T04:00:00Z A second, more speculative, but also more ambitious, proposal is to use topological insulators and related materials to construct a kind of quantum computer. Pushing the Boundaries in Quantum Electronics 2018-11-03T04:00:00Z Such forms include materials with topological properties that give rise to unusual electronic features — these stem from the underlying symmetries of the positions of atoms. Beware of plausible predictions of fantasy materials 2019-02-26T05:00:00Z The interference patterns, modelled by a computer, formed by quantum waves in a material known as a topological insulator.Credit: Thousands of exotic ‘topological’ materials discovered through sweeping search 2018-08-07T04:00:00Z A well-studied example is the topological insulator, which is an electrical insulator in its interior, but conducts electricity on its surface through electronic waves called topological surface states. Reflection forbidden and refraction reversed in an artificial crystal 2018-07-31T04:00:00Z For instance, the production of topological electronic materials is often hampered by sample imperfections. Topological states engineered in narrow strips of graphene 2018-08-07T04:00:00Z There is another approach that takes advantage of a topological electronic phase. Pushing the Boundaries in Quantum Electronics 2018-11-03T04:00:00Z The discovery of the topological behaviour of compounds is one of the most exciting recent developments in condensed-matter physics and solid-state chemistry7. Beware of plausible predictions of fantasy materials 2019-02-26T05:00:00Z Bernevig’s team also applied its method to create a topological catalogue. Thousands of exotic ‘topological’ materials discovered through sweeping search 2018-08-07T04:00:00Z However, it does occur in exotic phases of matter known as topological quantum matter, for quantum-mechanical electronic waves. Reflection forbidden and refraction reversed in an artificial crystal 2018-07-31T04:00:00Z Frequently, defects induce a large internal conductivity, even if the material is nominally a topological insulator. Topological states engineered in narrow strips of graphene 2018-08-07T04:00:00Z The examples outlined above provide two goals to motivate the further development of topological electronic materials. Pushing the Boundaries in Quantum Electronics 2018-11-03T04:00:00Z Theorists should do more to check that instabilities like these — that can be foreseen at the outset — do not break the precious symmetries that give topological materials their unconventional properties. Beware of plausible predictions of fantasy materials 2019-02-26T05:00:00Z A third group — including Vishwanath — also found hundreds of topological materials, many of which they deem promising. Thousands of exotic ‘topological’ materials discovered through sweeping search 2018-08-07T04:00:00Z The topological surface states in this material cannot propagate in all directions; propagation is confined to a certain range of directions, which connect to form what are known as Fermi arcs6. Reflection forbidden and refraction reversed in an artificial crystal 2018-07-31T04:00:00Z These studies also highlight the potential of using topological boundary states for materials engineering. Topological states engineered in narrow strips of graphene 2018-08-07T04:00:00Z Whether topological superconductivity is an intrinsic feature of solid-state materials remains an open question. The heat is on for Majorana fermions 2018-07-10T04:00:00Z Focusing on current strategies for predicting topological materials1–5, here I illustrate the problems by describing four common ways in which predictions might fail, offering exciting properties in unstable materials. Beware of plausible predictions of fantasy materials 2019-02-26T05:00:00Z Researchers will be able to comb the databases to find new topological materials to explore. Thousands of exotic ‘topological’ materials discovered through sweeping search 2018-08-07T04:00:00Z The authors’ results represent the first realization of negative refraction for topological surface states. Reflection forbidden and refraction reversed in an artificial crystal 2018-07-31T04:00:00Z These, in turn, may one day be used as topological qubits. What Are the Limits of Manipulating Nature? 2018-05-25T04:00:00Z This task is harder than obtaining evidence for non-Abelian topological order. The heat is on for Majorana fermions 2018-07-10T04:00:00Z Such materials are ‘born’ with defects, which can break the symmetry of the lattice, killing topological behaviour. Beware of plausible predictions of fantasy materials 2019-02-26T05:00:00Z Not every new topological material will prove interesting. Thousands of exotic ‘topological’ materials discovered through sweeping search 2018-08-07T04:00:00Z Hedgehog spin texture and Berry’s phase tuning in a magnetic topological insulator. Massive Dirac fermions in a ferromagnetic kagome metal 2018-03-18T04:00:00Z The problem with those approaches is that they are more sensitive to environmental perturbations than topological qubits, especially as the number of qubits grows. What Are the Limits of Manipulating Nature? 2018-05-25T04:00:00Z Arguably, there is more common ground here with physicists studying topology, whether in the connectivity of complex networks or in the handedness of electron band structures of ‘topological matter’. Asymmetry symposium unites economists, physicists and artists 2018-03-14T04:00:00Z Experimental observation of the quantum anomalous Hall effect in a magnetic topological insulator. A quantized microwave quadrupole insulator with topologically protected corner states 2018-03-13T04:00:00Z In her "Traces of Morandi," hard edges give way to the vaporous and quavering, and Wagner holds back on topological evidence to present instead a perceptual, conceptual proposition on the order of Plato's cave. In Catherine Wagner's luminous photographs, shadows of the great Giorgio Morandi 2018-03-13T04:00:00Z This work provides evidence for a ferromagnetic kagome metal and an example of emergent topological electronic properties in a correlated electron system. Massive Dirac fermions in a ferromagnetic kagome metal 2018-03-18T04:00:00Z Polarization-driven topological insulator transition in a GaN/InN/GaN quantum well. GaN/NbN epitaxial semiconductor/superconductor heterostructures 2018-03-06T05:00:00Z The new kid on the block, experimentally speaking, is the topological superconductor. Quantum upside-down cake 2018-02-25T05:00:00Z Quantum spin Hall effect and topological phase transition in HgTe quantum wells. A quantized microwave quadrupole insulator with topologically protected corner states 2018-03-13T04:00:00Z A newly designed device routes photons along twisting paths with minimal scattering by exploiting ‘topological’ effects. Photons hug the curves with help from special physics 2018-02-11T05:00:00Z Haldane, F. D. M. Berry curvature on the Fermi surface: anomalous Hall effect as a topological Fermi-liquid property. Massive Dirac fermions in a ferromagnetic kagome metal 2018-03-18T04:00:00Z In the first type of model, the triggering is related to the topological complexity of the flaring structure, which implies the presence of magnetically singular surfaces9,10,11. Magnetic cage and rope as the key for solar eruptions 2018-02-06T05:00:00Z They argue that these states are topological because they are resistant to the relatively strong disorder in the lead film. Quantum upside-down cake 2018-02-25T05:00:00Z We confirm the non-trivial topological phase using spectroscopic measurements and by identifying corner states that result from the bulk topology. A quantized microwave quadrupole insulator with topologically protected corner states 2018-03-13T04:00:00Z Take topological data analysis, a popular candidate for inclusion. Maths classification is getting a revision 2018-02-06T05:00:00Z This feature, known as topological protection, enables electrons to flow unimpeded. Physicists harness twisted mathematics to make powerful laser 2018-01-31T05:00:00Z They recorded live at a topological data analysis conference at the Banff International Research Station in Canada. Justin Curry's Favorite Theorem 2017-12-09T05:00:00Z Grothendieck’s dream was to produce, for any system of polynomial equations, the essential nugget that would remain after everything apart from the shared topological flavour of the system was washed away. Vladimir Voevodsky (1966–2017) Our results provide conclusive evidence of a unique form of robustness against disorder and deformation, which is characteristic of higher-order topological insulators. A quantized microwave quadrupole insulator with topologically protected corner states 2018-03-13T04:00:00Z But researchers have found ways to use it to give structure to large data sets, and so topological data analysis has been born. Maths classification is getting a revision 2018-02-06T05:00:00Z In a solid, topological effects emerge when electrons manoeuvre their way around the arrangement of atoms. Physicists harness twisted mathematics to make powerful laser 2018-01-31T05:00:00Z Unlike a donut and coffee mug, the topological equivalence of these four spaces is not at all obvious to me. A Few of My Favorite Spaces: The Loch Ness Monster 2017-11-05T04:00:00Z Disruptions of topological chromatin domains cause pathogenic rewiring of gene-enhancer interactions. Two independent modes of chromatin organization revealed by cohesin removal 2017-09-26T04:00:00Z Topological optical waveguiding in silicon and the transition between topological and trivial defect states. A quantized microwave quadrupole insulator with topologically protected corner states 2018-03-13T04:00:00Z We then calculated the adjacencies with the optimal soft-thresholding power estimated above and transformed the adjacency into a topological overlap matrix to calculate the corresponding dissimilarity. Dynamic landscape and regulation of RNA editing in mammals : Nature : Nature Research 2017-10-10T04:00:00Z A photograph of topological chip; the laser beam emerges at top-left.Credit: Physicists harness twisted mathematics to make powerful laser 2018-01-31T05:00:00Z I’ve come to the conclusion that this space had two things to tell me: how important the topological notion of end is and the limitations of my finite intuition on infinite spaces. A Few of My Favorite Spaces: The Loch Ness Monster 2017-11-05T04:00:00Z These singularities are mathematical holes and also arise in topological insulators. Waves that drive global weather patterns finally explained, thanks to inspiration from bagel-shaped quantum matter 2017-10-05T04:00:00Z W.A.B. guided the topological insulator design and performed the theoretical calculations. A quantized microwave quadrupole insulator with topologically protected corner states 2018-03-13T04:00:00Z An alternative to topological error correction is concatenated coding, in which the physical qubits in a code block are repeatedly replaced by logical qubits. Roads towards fault-tolerant universal quantum computation : Nature : Nature Research 2017-09-12T04:00:00Z Although topological ideas first arose in the theory of solid-state matter and are seen by many researchers as promising for electronics, few practical applications exist. Physicists harness twisted mathematics to make powerful laser 2018-01-31T05:00:00Z Smaller topological surfaces, the surfaces we call compact, have a nice classification: they are all combinations of tori and projective planes. A Few of My Favorite Spaces: The Loch Ness Monster 2017-11-05T04:00:00Z The molecules are the atomic equivalent of the Borromean rings, a topological curiosity in which three rings intertwine so that removing any one ring causes the other two to fall apart. Coolest science ever headed to the space station 2017-09-07T04:00:00Z Such demonstrations not only provide evidence of a unique form of robustness, but also show that reconfigurable microwave circuits are a promising platform for exploring exotic topological phases of matter. A quantized microwave quadrupole insulator with topologically protected corner states 2018-03-13T04:00:00Z This idea does not easily scale to topological codes, but could be investigated for concatenated codes. Roads towards fault-tolerant universal quantum computation : Nature : Nature Research 2017-09-12T04:00:00Z Winding numbers are topological invariants — they do not change as the shape is deformed. The strange topology that is reshaping physics 2017-07-18T04:00:00Z As we describe in a News Feature this week, physicists have been discovering states of matter that are topological. All shook up over topology 2017-07-18T04:00:00Z Lempel says that while Sony continues to work to enhance the service's topological capabilities, consumers are already pretty happy with its performance. You Can Play PS4 Games on PC Now. Here's Everything Sony Told Us 2017-07-06T04:00:00Z It can be hard to assess topological equivalence because it is so flexible. A Few of My Favorite Spaces: The Poincaré Homology Sphere 2017-06-04T04:00:00Z Investigations of the limitations of low-dimensional topological stabilizer codes, which aimed to improve our understanding of their potential, also uncovered new connections and surprises. Roads towards fault-tolerant universal quantum computation : Nature : Nature Research 2017-09-12T04:00:00Z Far from being exotic exceptions, topological states now seemed to offer a vast array of possibilities for discovering unknown effects in nature, he says. The strange topology that is reshaping physics 2017-07-18T04:00:00Z Their discovery of topological effects in solid-state physics is only the most recent example. All shook up over topology 2017-07-18T04:00:00Z Even more remarkably, topological defects in this liquid-crystal system seem to influence cell behaviour. Biological physics: Liquid crystals in living tissue : Nature : Nature Research 2014-04-11T04:00:00Z Google is also working on machines that employ superconductivity, while Microsoft is exploring a form known as topological quantum computing. Quantum computer 'construction plan' drawn up - BBC News 2017-02-01T05:00:00Z The surface code was first put forward as a topological quantum memory13. Roads towards fault-tolerant universal quantum computation : Nature : Nature Research 2017-09-12T04:00:00Z Some of the most fundamental properties of subatomic particles are, at their heart, topological. The strange topology that is reshaping physics 2017-07-18T04:00:00Z So were a GPS satellite to pass through a topological defect, the defect should cause the satellite’s atomic clock to skip a beat. Hunting dark matter with GPS data 2017-01-30T05:00:00Z Its rival, Microsoft, is betting on an intriguing but unproven concept, topological quantum computing, and hopes to perform a first demonstration of the technology. Quantum computers ready to leap out of the lab in 2017 2017-01-02T05:00:00Z Microsoft is working on an ambitious alternative technique known as topological quantum computing, which encodes information in the movement of particle-like objects in materials, and may be much more robust than rival methods. 2017 sneak peek: What the new year holds for science 2016-12-21T05:00:00Z An interesting direction for future devices is to move away from the constraints of low-dimensional topological codes. Roads towards fault-tolerant universal quantum computation : Nature : Nature Research 2017-09-12T04:00:00Z Hasan is attempting similar experiments, but thinks that topological quantum computers are at least four decades away. The strange topology that is reshaping physics 2017-07-18T04:00:00Z One jump in one atomic clock wouldn’t be proof enough for topological defects. Hunting dark matter with GPS data 2017-01-30T05:00:00Z No one has yet managed to create the state of matter needed for such excitations, let alone a topological qubit. Quantum computers ready to leap out of the lab in 2017 2017-01-02T05:00:00Z One half of the physics prize was awarded to Thouless, with the other half jointly given to Haldane and Kosterlitz for "theoretical discoveries of topological phase transitions and topological phases of matter". Scots awarded Nobel Prize in Physics - BBC News 2016-12-10T05:00:00Z This meant that theoretically, a topological quantum computer wouldn't need to devote so many qubits to error correction. Scientists are close to building a quantum computer that can beat a conventional one 2016-12-01T05:00:00Z “My projection is that topological phases of matter will remain in university labs for many years,” he says. The strange topology that is reshaping physics 2017-07-18T04:00:00Z Theory suggests that within a topological defect, the constants of nature will change. Hunting dark matter with GPS data 2017-01-30T05:00:00Z Early theoretical work on topological states of matter won three physicists the Nobel Prize in Physics on 4 October. Inside Microsoft’s quest for a topological quantum computer 2016-10-20T04:00:00Z Computational topology is already employed in tasks as diverse as loading goods at dockyards and studying the way protein molecules fold, so many topological algorithms already exist. Listen to the music of the traffic in the city 2016-10-20T04:00:00Z The three men invigorated the field of topological chemistry, the academy said. 3 Makers of ‘World’s Smallest Machines’ Awarded Nobel Prize in Chemistry 2016-10-05T04:00:00Z The next big challenge for theorists is to understand ‘strongly interacting’ topological materials, in which the electrons push hard against one another. The strange topology that is reshaping physics 2017-07-18T04:00:00Z When this happens, the regions meet along a craggy surface called a “domain wall,” which is one type of topological defect. Hunting dark matter with GPS data 2017-01-30T05:00:00Z The information is encoded in a ‘topological’ property — that is, a collective property of the system that only changes with macroscopic movements, not small fluctuations. Inside Microsoft’s quest for a topological quantum computer 2016-10-20T04:00:00Z From a topological standpoint, a bagel, a cinnamon bun and a pretzel are distinguished only by the number of holes they contain. 2016 Nobel Prize in physics awarded for revealing ‘the secrets of exotic matter’ 2016-10-04T04:00:00Z Changes happen only in sudden steps rather than smoothly, and Thouless showed that the quantum Hall effect was just such a topological phenomenon. Physics of 2D exotic matter wins Nobel 2016-10-03T04:00:00Z Many researchers say that the real reward of topological physics will be a deeper understanding of the nature of matter itself. The strange topology that is reshaping physics 2017-07-18T04:00:00Z The scientists were credited for their theoretical work on “topological phase transitions and topological phases of matter”. British trio win Nobel prize in physics for work on exotic states of matter 2016-10-04T04:00:00Z That line of work belongs in the fast-emerging field of topological insulators. China-only science prize honours pathologist and experimental physicist 2016-09-18T04:00:00Z Most significant, he predicted that topological defects would emerge in the universe at each phase transition, similar to the cracks that form when water freezes. Tom Kibble, Physicist Who Helped Discover the Higgs Mechanism, Dies at 83 2016-07-19T04:00:00Z This is what we mathematicians call a topological map. Bloodhound Diary: Getting 'ready to roll' - BBC News 2015-11-16T05:00:00Z Such robustness was unheard of, says Hasan, and it is one of the key attributes of topological states that physicists are now eager to exploit. The strange topology that is reshaping physics 2017-07-18T04:00:00Z But we don’t study these shapes using any notion of distance or curvature, we look at these shapes purely in terms of topological features. Theoretical Mathematician Says There’s No Such Thing as a Hard Problem 2015-05-12T04:00:00Z But he said the "dark horse in the race" was topological quantum computing, an architecture that is intrinsically more fault-tolerant. Step forward for quantum computing - BBC News 2015-05-01T04:00:00Z The red line represents the observed distances and the grey line represents distances for randomly generated topological domain boundaries. Chromatin architecture reorganization during stem cell differentiation : Nature : Nature Publishing Group 2015-02-17T05:00:00Z Perhaps the world's best-known topological map is the London Underground. Bloodhound Diary: Getting 'ready to roll' - BBC News 2015-11-16T05:00:00Z Wei Li, a physicist at Tsinghua University in Beijing, says that Bernevig’s method is “definitely a more efficient way” to search for new topological insulators. The strange topology that is reshaping physics 2017-07-18T04:00:00Z He completed his doctoral thesis on topological vector spaces at the University of Nancy in 1953, and spent a short time teaching in Brazil. Alexander Grothendieck (1928-2014) : Nature : Nature Publishing Group 2015-01-13T05:00:00Z Others talk of “topological defects”—kinks in the space-time continuum predicted by some speculative theories of physics. Moonbeams 2014-10-02T04:00:00Z According to the topological domain patterns, genomes were partitioned into domains, boundaries and unstructured regions as previously described. Chromatin architecture reorganization during stem cell differentiation : Nature : Nature Publishing Group 2015-02-17T05:00:00Z However, China is not the United States and faces technological, geological, technical and topological hurdles in developing its shale gas resources. China's Shale Production Falls Short, but Goals Remain in Place 2014-08-19T04:00:00Z Electrons moving through a crystal usually scatter when they hit an impurity, which slows their progress, but the topological effects in Hasan’s tantalum arsenide crystals allow electrons to travel unimpeded. The strange topology that is reshaping physics 2017-07-18T04:00:00Z Descriptions of the city certainly take centre stage in Manhattan Transfer; and the characters themselves fade until they form part of the background, blurring with City so that the social is mapped onto the topological. Reading American cities: New York in books 2014-07-29T04:00:00Z By weaving the particles around one another, topological quantum computers would generate imaginary threads whose knots and twists would create a powerful computing system. Microsoft Makes a Bet on Quantum Computing Research 2014-06-23T04:00:00Z The red line represents the observed distances and the grey line represents distances for randomly generated topological domain boundaries. Chromatin architecture reorganization during stem cell differentiation : Nature : Nature Publishing Group 2015-02-17T05:00:00Z Bootstrap support values are listed at each node. c, Removal of distant out-groups such as Fungi and Filasterea further improves topological robustness. The ctenophore genome and the evolutionary origins of neural systems : Nature : Nature Publishing Group 2014-05-20T04:00:00Z “Emergent phenomena in topological physics are probably all around us — even in a piece of rock,” says Zahid Hasan, a physicist at Princeton University in New Jersey. The strange topology that is reshaping physics 2017-07-18T04:00:00Z Try looking up “topological group” or “chord progression.” Readers Respond to "Your Brain on Google" 2014-04-05T13:00:00Z Owing to the elastic stress caused by the bending of the crystal, strong distortions occurred in the growing crystal, but, nonetheless, large single-crystalline domains with no topological defects were formed. [Report] Elastic Instability of a Crystal Growing on a Curved Surface 2014-02-06T19:26:28.527Z The remaining phases are obtained as combinations of these two “topological paramagnets” and the topological band insulator. [Report] Classification of Interacting Electronic Topological Insulators in Three Dimensions 2014-02-06T19:26:22.476Z Bootstrap support values are listed at each node. c, Removal of distant out-groups such as Fungi and Filasterea further improves topological robustness. The ctenophore genome and the evolutionary origins of neural systems : Nature : Nature Publishing Group 2014-05-20T04:00:00Z Most physicists study quantum concepts such as spin without worrying about their topological meaning. The strange topology that is reshaping physics 2017-07-18T04:00:00Z Next, a typical system extracts complex measurements — often topological — of each face. Technophoria: When No One Is Just a Face in the Crowd 2014-02-01T13:57:15Z In contrast to crystals grown on flat surfaces or compliant crystals on droplets, these crystals formed branched, ribbon-like domains with large voids and no topological defects. [Report] Elastic Instability of a Crystal Growing on a Curved Surface 2014-02-06T19:26:28.527Z We prove that these eight phases form a complete list of all possible interacting topological insulators and discuss their experimental signatures. [Report] Classification of Interacting Electronic Topological Insulators in Three Dimensions 2014-02-06T19:26:22.476Z So I agree with Orzel that the failure to find a theory of quantum gravity would not generally impact the search for a better topological insulator or DNA tweezer. Physics and fundamental laws: Necessary truth or misleading cacophony? 2014-01-22T22:48:08Z The material would be an example of a new class of materials called “topological insulators” that are highly conductive along a surface or edge, but insulating on their interior. Coordinates: Designing the Next Wave of Computer Chips 2014-01-09T22:41:11Z A mixture of cartoon, fantasy, and topological accuracy, it was an instant hit with the travelling public. The map that saved the London Underground 2014-01-10T01:10:43Z The result is a bulk material that acts as topological insulator at room temperature. Exotic conductors from lab and nature 2013-03-13T18:20:28.630Z A fundamental open problem in condensed-matter physics is how the dichotomy between conventional and topological band insulators is modified in the presence of strong electron interactions. [Report] Classification of Interacting Electronic Topological Insulators in Three Dimensions 2014-02-06T19:26:22.476Z Samarium hexaboride might be the next star of materials science, following hints last year that it is a topological insulator — conducting electricity on its surface, but behaving as an insulator inside. New Year, New Science 2013-01-02T11:15:00.407Z To be incompressible, every topological feature of the surface must truly reflect some of the three-manifold’s intrinsic topology. Getting into Shapes: From Hyperbolic Geometry to Cube Complexes 2012-12-26T17:45:00.337Z But topological insulators, as the materials were called, proved fiendishly difficult to make. Exotic Quantum Effects Could Follow from Compound Now Confirmed to Conduct Only at Surface 2012-12-11T23:15:00.247Z But that is not true for topological insulators — exotic materials that conduct electricity only along their surfaces. Exotic conductors from lab and nature 2013-03-13T18:20:28.630Z The map above visualises the resulting set of modules – each colour representing a distinct group – identified through the application of community detection methods to a topological representation of the London road system. Identifying clusters of activity on London's roads 2012-11-27T07:30:00Z This may indicate the presence of topological constraints imposed by the mechanism by which such interactions regulate target promoters. The long-range interaction landscape of gene promoters 2012-09-05T17:22:23.563Z Dissecting the surface along one of these loops removes some of the surface’s interesting topological features. Getting into Shapes: From Hyperbolic Geometry to Cube Complexes 2012-12-26T17:45:00.337Z Others have contented themselves with compounds that approximate topological insulators but still have a degree of internal conductivity. Exotic Quantum Effects Could Follow from Compound Now Confirmed to Conduct Only at Surface 2012-12-11T23:15:00.247Z In theory, it is difficult to corrupt spin values in a topological insulator. Exotic conductors from lab and nature 2013-03-13T18:20:28.630Z "The existence of unique long-time limit topological and spatial features is a universal signature that fundamental mechanisms, independent of historical and geographical differences, contribute to the evolution of these transportation networks," they wrote. Subways share universal structure 2012-05-16T12:00:31Z Together with his colleagues at Microsoft’s Station Q research centre, also at UCSB, he is trying to build what he calls a topological quantum computer. Quantum computing: An uncertain future 2012-02-23T17:07:45Z An internationally renowned expert in string theory, a press release issued by IAS today says Dijkgraaf "found surprising and deep connections between matrix models, string theory, topological string theory and supersymmetric quantum field theory." Dutch Physicist and Science Educator Robbert Dijkgraaf to Head IAS 2011-11-14T18:56:31Z Coleman and other theorists realized that the material’s behavior would make sense if it were a topological insulator. Exotic Quantum Effects Could Follow from Compound Now Confirmed to Conduct Only at Surface 2012-12-11T23:15:00.247Z The team cleaved off single crystalline sheets 0.7 millimetres wide and applied the standard test for a topological insulator: photoelectron spectroscopy. Exotic conductors from lab and nature 2013-03-13T18:20:28.630Z These two papers are part of a growing reliance on a particular kind of mathematical model—a so-called topological model—for understanding complex systems, including the power grid. Study: It's Hard to Bring Down the Electric Grid 2010-10-18T16:09:00Z This difference, in my opinion, demonstrates well the topological relationships of various systems of the body, here especially of the skeletal, muscular, and vascular systems. Thoracic and Coracoid Arteries In Two Families of Birds, Columbidae and Hirundinidae Set up a topological relation that drained all the free energy out of the system. The Lost Kafoozalum SmB6is an unusual topological insulator because the electrons in the outer shells of the samarium atoms interact with one another strongly, such that a coordinated motion emerges. Exotic Quantum Effects Could Follow from Compound Now Confirmed to Conduct Only at Surface 2012-12-11T23:15:00.247Z Their results confirm that the electrons’ energy and momentum distribution matches predictions for a topological insulator. Exotic conductors from lab and nature 2013-03-13T18:20:28.630Z Many topological models are, basically, graphs of connected links and nodes that represent the flows and paths within a system. Study: It's Hard to Bring Down the Electric Grid 2010-10-18T16:09:00Z In practical terms, that entailed first a series of exact measurements which had to be translated into the somewhat abstruse co-ordinate system we used based on the topological order of mass-points in the galaxy. Accidental Death Entire populations are subjected to hunger and disease due to social and economic inequities, to weather conditions or topological changes, or to political upheaval in the area where they live. The Civilization of Illiteracy The languages of the foundations of geometry and of algebraic, differential, or topological geometry are as different as the practical experiences from which they are derived. The Civilization of Illiteracy |
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