论文标题
连续时间晶体的光子超材料类似物
Photonic Metamaterial Analogue of a Continuous Time Crystal
论文作者
论文摘要
时间晶体是急切地寻求物质的阶段，其时间翻译对称性破裂。在捕获的离子，原子和旋转中已经证明了具有离散时间翻译对称性的量子晶体，而在光腔内的原子冷凝物中已经观察到了在原子冷凝物中观察到的不断损坏的时间翻译对称性。 Here we report that a classical metamaterial nanostructure, a two-dimensional array of plasmonic metamolecules supported on flexible nanowires, can be driven to a state possessing all of the key features of a continuous time crystal: continuous coherent illumination by light resonant with the metamolecules' plasmonic mode triggers a spontaneous phase transition to a superradiant-like state of透射率振荡是由于地质分子之间的多体相互作用而产生的，其特征是时空和时间上的远程顺序。在全光调制，频率转换和时间安排中，对动态经典多体状态的研究很感兴趣。
Time crystals are an eagerly sought phase of matter with broken time-translation symmetry. Quantum time crystals with discretely broken time-translation symmetry have been demonstrated in trapped ions, atoms and spins while continuously broken time-translation symmetry has been observed in an atomic condensate inside an optical cavity. Here we report that a classical metamaterial nanostructure, a two-dimensional array of plasmonic metamolecules supported on flexible nanowires, can be driven to a state possessing all of the key features of a continuous time crystal: continuous coherent illumination by light resonant with the metamolecules' plasmonic mode triggers a spontaneous phase transition to a superradiant-like state of transmissivity oscillations, resulting from many-body interactions among the metamolecules, characterized by long-range order in space and time. The phenomenon is of interest to the study of dynamic classical many-body states in the strongly correlated regime and applications in all-optical modulation, frequency conversion and timing.
