论文标题
鲜明的时间晶体：对称性在时空破裂
Stark time crystals: Symmetry breaking in space and time
论文作者
论文摘要
引人入胜的时间晶体的原始想法是指随时间和太空重复的结构，这一想法最近引起了重大兴趣。尽管实现此类结构的障碍很早就变得很明显，但重点已转移到定期驱动的系统中的对称性破裂，该系统的属性被称为离散时间晶体。在这项工作中，我们基于在没有任何空间疾病的情况下创建的一种定位，引入了鲜明的时间晶体。我们认为，Stark Time Crystals构成了物质的一个阶段，与原始想法非常接近，并在时空中表现出对称性破裂。我们对问题的物理学进行了全面讨论，我们继续详细阐述可能的实际应用，并认为在这种物理系统中，在大型系统中见证多体定位的真实签名的物理要求可能会减少。
The compelling original idea of a time crystal has referred to a structure that repeats in time as well as in space, an idea that has attracted significant interest recently. While obstructions to realize such structures became apparent early on, focus has shifted to seeing a symmetry breaking in time in periodically driven systems, a property of systems referred to as discrete time crystals. In this work, we introduce Stark time crystals based on a type of localization that is created in the absence of any spatial disorder. We argue that Stark time crystals constitute a phase of matter coming very close to the original idea and exhibit a symmetry breaking in space and time. Complementing a comprehensive discussion of the physics of the problem, we move on to elaborating on possible practical applications and argue that the physical demands of witnessing genuine signatures of many-body localization in large systems may be lessened in such physical systems.
