Phase-controlled and chaos-assisted or -suppressed quantum entanglement for a spin-orbit coupled Bose-Einstein condensate

It has been demonstrated that the presence of chaos may lead to greater entanglement generation for some physical systems. Here, we find different effects of chaos on the spin-motion entanglement for a two-frequency driven Bose-Einstein condensate with spin–orbit coupling. We analytically and numeri...

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Bibliographic Details
Published in:Chaos (Woodbury, N.Y.) N.Y.), 2019-10, Vol.29 (10), p.103148-103148
Main Authors: Kong, Chao, Luo, Xiaobing, Chen, Hao, Luo, Yunrong, Hai, Wenhua
Format: Article
Language:English
Subjects:
Bose-Einstein condensates
Condensates
Data processing
Dynamical systems
Nonlinear dynamics
Quantum entanglement
Quantum mechanics
Quantum phenomena
Spin-orbit interactions
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Summary:It has been demonstrated that the presence of chaos may lead to greater entanglement generation for some physical systems. Here, we find different effects of chaos on the spin-motion entanglement for a two-frequency driven Bose-Einstein condensate with spin–orbit coupling. We analytically and numerically demonstrate that classical chaos can assist or suppress entanglement generation, depending on the initial phase differences between two motional states, which can be manipulated by using the known phase-engineering method. The results could be significant in engineering nonlinear dynamics for quantum information processing with many-body entanglement.
ISSN:1054-1500
1089-7682
DOI:10.1063/1.5118873