Time-Reversal-Invariant Spin-Orbit-Coupled Bilayer Bose-Einstein Condensates

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dc.contributor.authorMaisberger, Matthew
dc.contributor.authorWang, Lin-Cheng
dc.contributor.authorSun, Kuei
dc.contributor.authorXu, Yong
dc.contributor.authorZhang, Chuanwei
dc.contributor.utdAuthorMaisberger, Matthew
dc.contributor.utdAuthorWang, Lin-Cheng
dc.contributor.utdAuthorSun, Kuei
dc.contributor.utdAuthorXu, Yong
dc.contributor.utdAuthorZhang, Chuanwei
dc.date.accessioned2019-08-30T16:57:10Z
dc.date.available2019-08-30T16:57:10Z
dc.date.created2018-05-29
dc.description.abstractTime-reversal invariance plays a crucial role for many exotic quantum phases, particularly for topologically nontrivial states, in spin-orbit coupled electronic systems. Recently realized spin-orbit coupled cold-atom systems, however, lack the time-reversal symmetry due to the inevitable presence of an effective transverse Zeeman field. We address this issue by analyzing a realistic scheme to preserve time-reversal symmetry in spin-orbit-coupled ultracold atoms, with the use of Hermite-Gaussian-laser-induced Raman transitions that preserve spin-layer time-reversal symmetry. We find that the system's quantum states form Kramers pairs, resulting in symmetry-protected gap closing of the lowest two bands at arbitrarily large Raman coupling. We also show that Bose gases in this setup exhibit interaction-induced layer-stripe and uniform phases as well as intriguing spin-layer symmetry and spin-layer correlation. © 2018 American Physical Society.
dc.description.departmentSchool of Natural Sciences and Mathematics
dc.description.sponsorshipThis work is supported by AFOSR (FA9550-16-1-0387), NSF (PHY-1505496), and ARO (W911NF-17-1-0128). National Natural Science Foundation of China (NSFC) under Grant No. 11475037 and Fundamental Research Funds for the Central Universities under Grant No. DUT15LK26.
dc.identifier.bibliographicCitationMaisberger, M., L. -C Wang, K. Sun, Y. Xu, et al. 2018. "Time-reversal-invariant spin-orbit-coupled bilayer Bose-Einstein condensates." Physical Review A 97(5).
dc.identifier.issn2469-9926
dc.identifier.issue5
dc.identifier.urihttps://hdl.handle.net/10735.1/6814
dc.identifier.volume97
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevA.97.053624
dc.rights©2018 American Physical Society
dc.source.journalPhysical Review A
dc.subjectBose-Einstein condensation
dc.subjectStatistical mechanics
dc.subjectElectronic systems
dc.subjectTime reversal
dc.subjectQuantum theory
dc.titleTime-Reversal-Invariant Spin-Orbit-Coupled Bilayer Bose-Einstein Condensates
dc.type.genrearticle

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