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dc.contributor.authorChen, Li
Zhang, Yunbo
Pu, Han
dc.date.accessioned 2020-10-28T14:14:24Z
dc.date.available 2020-10-28T14:14:24Z
dc.date.issued 2020
dc.identifier.citation Chen, Li, Zhang, Yunbo and Pu, Han. "Spin squeezing in a spin-orbit-coupled Bose-Einstein condensate." Physical Review A, 102, no. 2 (2020) American Physical Society: https://doi.org/10.1103/PhysRevA.102.023317.
dc.identifier.urihttps://hdl.handle.net/1911/109453
dc.description.abstract We study the spin squeezing in a spin-1/2 Bose-Einstein condensates (BEC) with Raman-induced spin-orbit coupling (SOC). Under the condition of two-photon resonance and weak Raman coupling strength, the system possesses two degenerate ground states, using which we construct an effective two-mode model. The Hamiltonian of the two-mode model takes the form of the one-axis-twisting Hamiltonian, which is known to generate spin squeezing. More importantly, we show that the SOC provides a convenient control knob to adjust the spin nonlinearity responsible for spin squeezing. Specifically, the spin nonlinearity strength can be tuned to be comparable to the two-body density-density interaction, and hence is much larger than the intrinsic spin-dependent interaction strength in conventional two-component BEC systems such as 87Rb and 23Na in the absence of the SOC. We confirm the spin squeezing by carrying out a fully beyond-mean-field numerical calculation using the truncated Wigner method. Additionally, the experimental implementation is also discussed.
dc.language.iso eng
dc.publisher American Physical Society
dc.rights Article 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.
dc.title Spin squeezing in a spin-orbit-coupled Bose-Einstein condensate
dc.type Journal article
dc.citation.journalTitle Physical Review A
dc.contributor.org Rice Center for Quantum Materials
dc.citation.volumeNumber 102
dc.citation.issueNumber 2
dc.type.dcmi Text
dc.identifier.doihttps://doi.org/10.1103/PhysRevA.102.023317
dc.type.publication publisher version
dc.citation.articleNumber 023317


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