论文标题
光子浮标时间晶体
Photonic Floquet time crystals
论文作者
论文摘要
公众和科学家不断有不同的观点。在时间晶体上，他们排成一排，问：什么是时间晶体？告诉我一种自发晶体的材料？这项研究综合了浮子时间晶体的光子材料，并在实验上观察其指示性2T击败。我们明确地重建一个离散的时间结晶基态，并使用适当设计的光子浮子模拟器揭示刚性时期的加倍，作为离散时间传播对称性自发断裂的标志。与精美的多体相互作用的结果不同，光子时间晶体源自单粒子拓扑相，许多相关的非平衡和周期性驱动的平台可以广泛访问。我们的观察结果将推动理论和技术利益朝着凝结物理和拓扑光子学介入，并为非科学公众脱颖而出的时间晶体。
The public and scientists constantly have different perspectives. While on a time crystal, they stand in line and ask: What is a time crystal? Show me a material that is spontaneously crystalline in time? This study synthesizes a photonic material of Floquet time crystals and experimentally observes its indicative period-2T beating. We explicitly reconstruct a discrete time-crystalline ground state and reveal using an appropriately-designed photonic Floquet simulator the rigid period-doubling as a signature of the spontaneous breakage of the discrete time-translational symmetry. Unlike the result of the exquisite many-body interaction, the photonic time crystal is derived from a single-particle topological phase that can be extensively accessed by many pertinent nonequilibrium and periodically-driven platforms. Our observation will drive theoretical and technological interests toward condensed matter physics and topological photonics, and demystify time crystals for the non-scientific public.
