Gauge-field induced quantum phases in fermionic optical lattices (C02)

C2项目研究对称性破缺的亚稳态量子相以及相关的耗散和退相干通道。我们采用光学晶格加载玻色子或费米子准备在更高的布洛赫带，其功能的轨道自由度和非常长寿的亚稳态破缺时间反演对称性。在SFB的第一个资助期内，我们专注于亚稳手性相的形成、检测和理解，而在未来，我们的重点将转向对耗散和弛豫通道的理解（与项目B7、C6、C7和C9合作），以及将我们以前关于玻色子的结果扩展到费米系统。在这里，我们的最终目标是探索实现拓扑绝缘体和轨道BCS超流性的可能性（与项目C1，C3和C4的合作和共同努力）。

Project C2 studies novel metastable quantum phases with broken symmetries and the asso-ciated channels of dissipation and decoherence. We employ optical lattices loaded with bos-ons or fermions prepared in higher Bloch bands, which feature orbital degrees of freedom and very long-lived metastable states of broken time-reversal symmetry. In the first funding period of the SFB, we have focused on the formation, detection, and understanding of meta-stable chiral phases, while in the future our focus will shift towards the understanding of dis-sipation and relaxation channels (collaborations with projects B7, C6, C7 and C9) as well as towards the extension of our previous results on bosons to fermionic systems. Here, our ul-timate goal is to explore the possibilities of implementing a topological insulator and orbital BCS superfluidity (collaboration and joint efforts with projects C1, C3 and C4).