Gap Solitons in Spin-Orbit-Coupled Bose-Einstein Condensates in Optical Lattices

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Gap Solitons in Spin-Orbit-Coupled Bose-Einstein Condensates in Optical Lattices

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Title: Gap Solitons in Spin-Orbit-Coupled Bose-Einstein Condensates in Optical Lattices
Author(s):
Zhang, Yongping;
Xu, Yong;
Busch, Thomas
Date Created: 2015-04-23
Format: Text
Item Type: Article
Keywords: Show Keywords
Abstract: While different ways to realize spin-orbit coupling in Bose-Einstein condensates exist, not all are currently experimentally implementable. Here we present a detailed study of gap solitons in a Bose-Einstein condensate with experimentally realizable spin-orbit coupling and discuss two cases relating to a spin-dependent parity symmetry. In the parity symmetric case, two families of fundamental gap solitons in the second linear energy gap are demonstrated with the opposite sign of the parity, with one family having single-humped densities and the other double-humped ones. In the case of broken parity symmetry, the fundamental modes manifest spin polarization. Both families possess an opposite sign of the spin polarization.
Language: English
Publisher: American Physical Society
ISSN: 1050-2947
Persistent Link: http://hdl.handle.net/10735.1/4601
http://dx.doi.org/10.1103/PhysRevA.91.043629
Bibliographic Citation: Zhang, Yongping, Yong Xu, and Thomas Busch. 2015. "Gap solitons in spin-orbit-coupled Bose-Einstein condensates in optical lattices." Physical Review A 91(4) doi: 10.1103/PhysRevA.91.043629.
Terms of Use: ©2015 American Physical Society

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