论文标题
耗散引起的拓扑相变和周期性驾驶引起的光子拓扑状态转移在小的光学晶格中
Dissipation-induced topological phase transition and periodic-driving-induced photonic topological state transfer in a small optomechanical lattice
论文作者
论文摘要
我们提出了一个方案，以根据现实参数制度研究基于小的光力晶格的拓扑相变和拓扑状态转移。我们发现，通过设计有效的光学机械耦合，光力晶格可以等效于拓扑非平凡的Su-Schrieffer-Heeger（SSH）模型。尤其是，光学机械晶格通过控制腔场的衰减和光力学耦合，经历了拓扑非平凡的SSH相和拓扑琐碎的SSH相之间的相变。我们强调的是，拓扑相变的主要是由腔场的衰减引起的，腔场的衰减是违反直觉的，因为耗散通常对系统有害。同样，我们根据小型光学晶格研究了两个空腔场之间的光子状态转移。我们发现，可以通过暗示外部激光器的定期驱动振幅进入空腔场的辅助量零能量辅助的量子状态转移。我们的方案提供了基于微纳米光学机械量子光学平台对光子拓扑绝缘子映射的基本和有见识的解释。
We propose a scheme to investigate the topological phase transition and the topological state transfer based on the small optomechanical lattice under the realistic parameters regime. We find that the optomechanical lattice can be equivalent to a topologically nontrivial Su-Schrieffer-Heeger (SSH) model via designing the effective optomechanical coupling. Especially, the optomechanical lattice experiences the phase transition between topologically nontrivial SSH phase and topologically trivial SSH phase by controlling the decay of the cavity field and the optomechanical coupling. We stress that the topological phase transition is mainly induced by the decay of the cavity field, which is counter-intuitive since the dissipation is usually detrimental to the system. Also, we investigate the photonic state transfer between the two cavity fields via the topologically protected edge channel based on the small optomechanical lattice. We find that the quantum state transfer assisted by the topological zero energy mode can be achieved via implying the external lasers with the periodical driving amplitudes into the cavity fields. Our scheme provides the fundamental and the insightful explanations toward the mapping of the photonic topological insulator based on the micro-nano optomechanical quantum optical platform.
