Last year, 2022, scientists had a truly gapless genome.

去年，2022 年，科学家们完成了一个真正无间隙的基因组。

Some systems have a significant spectral gap, whereas others are gapless.

有些系统有明显的频谱间隙，而其他系统则无间隙。

And this is important because at low temperatures, gapless quantum systems can undergo phase transitions, while gapped systems cannot.

这很重要， 因为在低温下，无间隙量子系统可以发生相变，而间隙系统则不能。

But figuring out if a system is gapped or gapless has long been known to be a very difficult problem.

但长期以来人们都知道，确定一个系统是否有间隙或无间隙是一个非常困难的问题。