Zheng, Zhen-FeiGuo, Guang-CanPu, HanZou, Xu-Bo2018-11-152018-11-152018Zheng, Zhen-Fei, Guo, Guang-Can, Pu, Han, et al.. "Field-induced topological pair-density wave states in a multilayer optical lattice." <i>Physical Review A,</i> 98, no. 3 (2018) American Physical Society: https://doi.org/10.1103/PhysRevA.98.033606.https://hdl.handle.net/1911/103330We study the superfluid phases of a Fermi gas in a multilayer optical lattice system in the presence of out-of-plane Zeeman field, as well as spin-orbit (SO) coupling. We show that the Zeeman field combined with the SO coupling leads to exotic topological pair-density wave (PDW) phases in which different layers possess different superfluid order parameters, even though each layer experiences the same Zeeman field and the SO coupling. We elucidate the mechanism of the emerging PDW phases, and characterize their topological properties by calculating the associated Chern numbers.engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articlePhysRevA.98.033606https://doi.org/10.1103/PhysRevA.98.033606