| 单词 | ground state |
| 例句 | The two states of the qubit correspond to two energy states of this artificial atom: its lowest energy state, which is known as the ground state, and the next one up. What’s a Qubit? 3 Ways Scientists Build Quantum Computers 2023-09-28T04:00:00Z This change means the BEC's quantum state has jumped from its ground state to its first excited state. Physicists Make Matter out of Light to Find Quantum Singularities 2023-06-18T04:00:00Z When these excited atoms eventually return to their normal ground state, the excess energy from the collision shoots off in the form of vibrant light. Northern Lights Dance across U.S. because of ‘Stealthy’ Sun Eruptions 2023-03-30T04:00:00Z Energy is plotted vertically with the lowest or ground state at the bottom and with excited states above. College Physics for AP Courses 2015-08-12T00:00:00Z For example, calcium is a group 2 element whose neutral atoms have 20 electrons and a ground state electron configuration of 1s22s22p63s23p64s2. Chemistry 2019-02-14T00:00:00Z Energy from a photon of light can bump it up to a higher energy shell, but this situation is unstable, and the electron quickly decays back to the ground state. Biology for AP Courses 2022-06-09T00:00:00Z The electrons that are captured by the hydrogen nuclei cascade down through the various energy levels of the hydrogen atoms on their way to the lowest level, or ground state. Astronomy 2016-10-13T00:00:00Z Because of the quantum nature of the universe, an excited molecule reverts to its ground state by emitting a photon. Why a Comet’s Head Is Green, but Its Tail Is Not 2022-01-07T05:00:00Z For example, giving 15.0 eV to an electron in the ground state of hydrogen strips it from the atom and leaves it with 1.4 eV of kinetic energy. College Physics for AP Courses 2015-08-12T00:00:00Z An array of lasers is used to cool the ion to its quantum ground state, where the momentum and position uncertainties of the ion are at their minimum. This Simple Experiment Could Challenge Standard Quantum Theory 2021-10-21T04:00:00Z A Kerry spokeswoman in Ohio, a perennial battleground ground state where Brood X typically appears, emerged with an entomological retort, telling the Cincinnati Enquirer that the campaign wasn’t “bugging out” about the attack. ‘Are cicadas Republican or Democrat?' Ronald Reagan and George W. Bush had an answer. 2021-05-15T04:00:00Z This is a schematic diagram of a hydrogen atom in its lowest energy state, also called the ground state. Astronomy 2016-10-13T00:00:00Z Specifically, by “catchable” the researchers mean that the jump back to the ground state will not always be smooth and predictable. New Views of Quantum Jumps Challenge Core Tenets of Physics 2020-12-29T05:00:00Z In the fluorescence process, an atom is excited to a level several steps above its ground state by the absorption of a relatively high-energy UV photon. College Physics for AP Courses 2015-08-12T00:00:00Z Nearly 20% of residents in the battle ground state are young people, among the highest rates in the country. Gen Zers unite on social issues but split over Trump vs. Biden 2020-11-01T04:00:00Z The binding energy of an atom or ion — the energy required to break the atom into its free electrons and a nucleus — is different in an excited metastable state from that in the ground state. Mass spectrometry for future atomic clocks 2020-05-05T04:00:00Z In the Bohr model of the hydrogen atom, the ground state corresponds to the electron being in the innermost orbit. Astronomy 2016-10-13T00:00:00Z The system transitions by passing through a mixture of the excited state and ground state, a quantum phenomenon known as superposition. New Views of Quantum Jumps Challenge Core Tenets of Physics 2020-12-29T05:00:00Z Figure 30.48 The ground state of a hydrogen atom has a probability cloud describing the position of its electron. College Physics for AP Courses 2015-08-12T00:00:00Z When molecules absorb light, they enter an excited state and become more reactive than when in their ground state. Strong chemical reducing agents produced by light 2020-03-31T04:00:00Z The observed properties of the proton emission allowed the authors to deduce the structure of the proton-emitting state in rubidium-73, and, from this, the structure of the ground state of strontium-73. Mirror symmetry broken for nuclear ground states 2020-03-31T04:00:00Z After a short interval, typically a hundred-millionth of a second or so, it drops back spontaneously to its ground state, with the simultaneous emission of light. Astronomy 2016-10-13T00:00:00Z “At each point in the trajectory, there is a probability that the jump continues and a probability that it is projected back to the ground state,” Snizhko says. New Views of Quantum Jumps Challenge Core Tenets of Physics 2020-12-29T05:00:00Z A more valid picture is the cloud of probability shown for the ground state of hydrogen in Figure 30.48. College Physics for AP Courses 2015-08-12T00:00:00Z He showed that a material could have a lowest energy ground state that featured the pattern even if the interactions did not explicitly encode it. Philip Anderson, legendary theorist whose ideas shaped modern physics, dies 2020-03-30T04:00:00Z By heavily deforming samples of metallic glasses under constrained conditions, Pan et al. raise the energies of the glasses far above the energy of the ground state, rejuvenating them and loading them up with STZs. Metallic glasses rejuvenated to harden under strain 2020-02-25T05:00:00Z If the atom then lost that same amount of energy again, it would return to its ground state. Astronomy 2016-10-13T00:00:00Z Cool the atoms into their ground state, however, and they nestle into a repeating pattern like the squares on a checkerboard. Back to the future: The original time crystal makes a comeback 2019-11-27T05:00:00Z Figure 30.56 Probability clouds for the electron in the ground state and several excited states of hydrogen. College Physics for AP Courses 2015-08-12T00:00:00Z In essence, the symmetry of the interaction is broken by the ground state. Philip Anderson, legendary theorist whose ideas shaped modern physics, dies 2020-03-30T04:00:00Z While Bulkeley’s supporters commended him for stepping in to “hold the fort,” his unelected tenure provoked a crisis of legitimacy that ground state government to a halt. Mississippi governor’s race taking place under Jim Crow-era rules after judge refuses to block them 2019-11-02T04:00:00Z Ordinarily, an atom is in the state of lowest possible energy, its ground state. Astronomy 2016-10-13T00:00:00Z Seiferle et al.2 observed a process known as internal conversion, in which a thorium-229 nucleus in the isomeric state decayed to the ground state and the neutral atom emitted an electron. One tick closer to a nuclear clock 2019-09-10T04:00:00Z Once it is excited, the atom can de-excite in several ways, one of which is to re-emit a photon of the same energy as excited it, a single step back to the ground state. College Physics for AP Courses 2015-08-12T00:00:00Z In addition to computing the mean energy of the ground state in their set-up, the authors calculate how much the energy varies from this mean value. Scaling up quantum simulations 2019-05-14T04:00:00Z Using this approach, the team achieved a mean thermal occupation of approximately 0.3, which means that the oscillator was in the ground state for more than 75% of the time. Mechanical quantum systems controlled 2018-10-30T04:00:00Z The minimum amount of energy required to remove one electron from an atom in its ground state is called its ionization energy. Astronomy 2016-10-13T00:00:00Z These ions were then neutralized to allow them to decay to the ground state through a process called internal conversion. One tick closer to a nuclear clock 2019-09-10T04:00:00Z Most return to the ground state in less than about 10−8 s , but those in the metastable state linger. College Physics for AP Courses 2015-08-12T00:00:00Z If two adjacent atoms are excited into superposition, where both are partially in a Rydberg state and partially in their ground state, a measurement will collapse the atoms to one or the other state. Arrays of atoms emerge as dark horse candidate to power quantum computers 2018-09-26T04:00:00Z BLS examines the inelastic scattering of light; it can probe both the ground state of magnetic materials and their excited states. Peter Grünberg (1939-2018) 2018-05-23T04:00:00Z An atom in its lowest energy level is in the ground state. Astronomy 2016-10-13T00:00:00Z Subtypes then become more crisply defined as neurons, poised in the genetic ground state dictated by progenitors; they then differentiate and interact with the environment. A mixed model of neuronal diversity 2018-03-04T05:00:00Z Figure 30.48 shows how this applies to the ground state of hydrogen. College Physics for AP Courses 2015-08-12T00:00:00Z The ground state of embryonic stem cell self-renewal. Pluripotent state transitions coordinate morphogenesis in mouse and human embryos 2017-11-28T05:00:00Z One of the injured students, Elizebeth Diaz, 15, said the chemistry teacher was conducting an experiment to demonstrate how an atom goes from ground state to excited state. Science Mishap Sends Bronx Students to the Hospital 2017-11-22T05:00:00Z Using this iterative algorithm, IBM’s quantum computer successfully calculated the ground state energy of all three molecules, setting a world record for quantum simulation, the team reports today in Nature. Quantum computer simulates largest molecule yet, sparking hope of future drug discoveries 2017-09-13T04:00:00Z Let’s all take a quick moment to breathe and allow some of our charged political atoms to return to their ground state. Patience on Flynnghazi: Be extremely wary of whatever Michael Flynn offers to say in public 2017-03-31T04:00:00Z After a few dozen laps, the phases evolve toward the ground state and stabilize. Odd computer zips through knotty tasks 2016-10-20T04:00:00Z This device develops a baseline for understanding the individual’s ground state based on a range of health-related telematics—body temperature, pulse rate, blood pressure, perspiration levels and any number of other attributes. TeradataVoice: Why Machine Learning Is The Next Penicillin 2015-07-16T04:00:00Z The aim in quantum annealing is also to reach the "ground state" - in this case, the lowest energy point. Is $15m machine a glimpse of future computing? 2014-05-19T04:00:00Z Virginia, a battle ground state, is likely to swing on the coattails of the top of the ticket. Tuesday's Congressional Races: A Primer 2012-11-06T19:35:37Z The spacing between the mirrors was an integral multiple of the wavelength of the transition between the first excited state of cesium and its ground state. Cavity Quantum Electrodynamics 2012-10-09T20:45:02.517Z Focusing on the basic technique, the Stanford group solved Ising models with up to 100 spins, using a conventional computer to check their work and see how close they were getting to ground state. Odd computer zips through knotty tasks 2016-10-20T04:00:00Z Lasers ordinarily require a population inversion, a condition in which atoms in an excited state outnumber those in the ground state; the excited atoms emit laser photons as they drop to the ground state. Bringing Schrödinger s Cat to Life 2012-10-09T18:15:11.620Z But those orbits have set discrete energies, and those energies are related to an orbit’s size: the lowest energy, or “ground state,” is associated with the smallest orbit. Don't Be Dissin' the Bohr Model! 2012-02-10T13:15:00.243Z But that violates the third law of thermodynamics, which insists that these materials should have just one ground state. A meeting of disciplines: String theory finds a bench mate 2011-10-19T17:20:28.410Z A cavity with no photon is in its lowest-energy state, the so-called ground state, but it is not really empty. Cavity Quantum Electrodynamics 2012-10-09T20:45:02.517Z As the number of spins grows, they most often don't find the exact ground state, but only a low-energy approximation of it. Odd computer zips through knotty tasks 2016-10-20T04:00:00Z If His were playing the role of Gln, it would, at least in the ground state, be required to function as a hydrogen bond acceptor and therefore be unprotonated. [Technical Response] Response to Comment on ?The Mechanism for Activation of GTP Hydrolysis on the Ribosome? 2011-07-05T19:25:35.447Z As they cool and fall back to their normal ground state, the excess energy has to go somewhere, so it’s emitted as photons, which our eyes perceive as light. Don't Be Dissin' the Bohr Model! 2012-02-10T13:15:00.243Z The energy absorbed by an atom rearranges its electrons from their lowest-energy state, called the ground state, up to a higher-energy state, called an excited state. What Makes Them Go Boom? Our Favorite Explainers on the Science of Fireworks 2011-06-30T21:15:00.257Z Realistically, trapping for 10-30 minutes will be sufficient for most experiments, as long as the antiatoms are in their lowest energy state, or ground state. CERN Group Traps Antihydrogen 2011-06-07T14:39:00Z It takes some fraction of a second for these atoms, once they're produced, to get to the ground state. Science ups the 'anti' on matter 2011-06-06T09:12:12Z That's long enough for an atom to lose all of its internal energy and settle into its least-energetic "ground state," a prerequisite for probing its inner workings. Antiatoms, All Out of Energy and Ready for Work 2011-06-05T18:00:00Z If they’ve done things right, then the ground state of the noninteracting system should naturally evolve into the ground state of the interacting system and reveal the answer to the problem encoded in the interactions. Controversial Computer Is at Least a Little Quantum Mechanical 2011-05-13T22:25:22Z The excess energy of the excited state is emitted as light, as the electrons descend to lower-energy states, and ultimately, the ground state. What Makes Them Go Boom? Our Favorite Explainers on the Science of Fireworks 2011-06-30T21:15:00.257Z It returns a mixed-up cube back to its ground state of all blocks of the same colour on the same face in 25 seconds, on average. Meet the makers 2010-03-25T10:36:00Z Vast quantities of the shavings of this wood are sold in a half-torrefied and ground state to disguise its obvious character, and to prevent its being recognised among the waste materials of the brewers. A Treatise on Adulterations of Food, and Culinary Poisons Exhibiting the Fraudulent Sophistications of Bread, Beer, Wine, Spiritous Liquors, Tea, Coffee, Cream, Confectionery, Vinegar, Mustard, Pepper, Cheese, Olive Oil, Pickles, and Other Articles Employed in Domestic Economy Cements, in the form of pats, briquettes, cubes, cylinders, and in a loose ground state, and also mortars and concretes in cube, cylinder, and slab form, are subjected to sea water. Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 The researchers observe a similar phenomenon as a chain of eight qubits with very simple interactions finds its way to its predicted ground state. Controversial Computer Is at Least a Little Quantum Mechanical 2011-05-13T22:25:22Z Cocoa-shell, a perfectly valueless material, is mixed in a very finely ground state with cocoa of the commoner kind. The Project Gutenberg Encyclopedia Volume 1 of 28 But it’s possible that D-Wave’s qubits lose coherence very quickly to act more or less independently but nonetheless tunnel to their collective ground state. Controversial Computer Is at Least a Little Quantum Mechanical 2011-05-13T22:25:22Z |
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