Momentum Space Aharonov-Bohm Interferometry in Rashba Spin-Orbit Coupled Bose-Einstein Condensates

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dc.contributor.VIAF4042455 (Zhang, C)
dc.contributor.authorHou, Junpeng
dc.contributor.authorLuo, Xi-Wang
dc.contributor.authorSun, Kuei
dc.contributor.authorZhang, Chuanwei
dc.contributor.utdAuthorHou, Junpeng
dc.contributor.utdAuthorLuo, Xi-Wang
dc.contributor.utdAuthorSun, Kuei
dc.contributor.utdAuthorZhang, Chuanwei
dc.date.accessioned2019-07-26T17:30:19Z
dc.date.available2019-07-26T17:30:19Z
dc.date.created2018-08-13
dc.descriptionFull text access from Treasures at UT Dallas is restricted to current UTD affiliates (use the provided Link to Article). All others may find the web address for this item in the full item record as "dc.relation.uri" metadata.
dc.description.abstractThe recent experimental realization of synthetic Rashba spin-orbit coupling (SOC) paves a new avenue for exploring topological phases in ultracold atoms. The unequivocal characterization of such topological physics requires a simple scheme for measuring the Berry phase originating from the SOC. Here we propose a scheme to realize momentum space Aharonov-Bohm interferometry in a Rashba spin-orbit-coupled Bose-Einstein condensate through a sudden change of the in-plane Zeeman field. We find that the π Berry phase for the Dirac point of the Rashba SOC is directly revealed by a robust dark interference fringe in the momentum space. An external perpendicular Zeeman field opens a band gap at the Dirac point, which reduces the Berry phase along the Rashba ring, leading to lower brightness of the interference fringe. We develop a variational model with semiclassical equations of motion of essential dynamical quantities for describing the interference process, yielding real and momentum space trajectories and geometric phases agreeing with the real-time simulation of the Gross-Pitaevskii equation. Our study may pave the way for the experimental detection of Berry phases in ultracold atomic systems and further exploration of momentum space interference dynamics.
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).
dc.identifier.bibliographicCitationHou, J., X. -W Luo, K. Sun, and C. Zhang. 2018. "Momentum space Aharonov-Bohm interferometry in Rashba spin-orbit coupled Bose-Einstein condensates." EPL 123(1): art. 10005, doi:10.1209/0295-5075/123/10005
dc.identifier.issn0295-5075
dc.identifier.issue1
dc.identifier.urihttps://hdl.handle.net/10735.1/6746
dc.identifier.volume123
dc.language.isoen
dc.publisherInstitute of Physics Publishing
dc.relation.urihttp://dx.doi.org/10.1209/0295-5075/123/10005
dc.rights©2018 EPLA
dc.source.journalEPL
dc.subjectCollective excitations
dc.subjectSuperfluidity
dc.subjectAtoms--Ultracold
dc.subjectInterferometry
dc.subjectBose-Einstein condensation
dc.titleMomentum Space Aharonov-Bohm Interferometry in Rashba Spin-Orbit Coupled Bose-Einstein Condensates
dc.type.genrearticle

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