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

费米子光学晶格中的规范场诱导量子相 (C02)

• 批准号: 201279624
• 金额: --
• 依托单位: Institut für Laser-Physik
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/201279624?language=en
• 关键词: Gauge; field; induced; quantum; phases

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).

C2项目研究了具有破缺对称性的新型亚稳态量子相以及相关的耗散和退相干通道。我们使用了加载了玻色子或费米子的光学晶格，这些光学晶格具有轨道自由度和非常长的亚稳态破坏的时间反转对称性。在SFB的第一个资助期，我们的重点是亚稳定手性相的形成、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B7、C6、C7和C9项目合作)，以及将我们以前关于玻色子的结果推广到费米子系统。在这里，我们的最终目标是探索实现拓扑绝缘体和轨道BCS超流的可能性(与C1、C3和C4项目合作和共同努力)。