Quantum Zeno control of spin mixing and squeezing in a spinor Bose-Einstein condensate

被引：0
|
作者：
Fan, Biao [1 ]
Li, Xinfang [1 ]
Liu, Jianning [1 ]
Xiong, Heng-Na [2 ]
Huang, Yixiao [1 ]
机构：
[1] Zhejiang Univ Sci & Technol, Sch Sci, Hangzhou 310023, Zhejiang, Peoples R China
[2] Zhejiang Univ Technol, Dept Appl Phys, Hangzhou 310023, Peoples R China
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2021年 / 54卷 / 11期
关键词：
Bose Einstein condenstae; quantum Zeno effect; spin mixing dynamics; spin squeezing; ENTANGLEMENT; DECAY;
D O I：
10.1088/1361-6455/abfea0
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study the effect of dephasing on the spin-mixing dynamics of a spinor Bose-Einstein condensate. We focus on a short-time dynamics and derive an analytical dynamics equations for the system by using mean-field approximation. We show the spin-mixing is suppressed via a quantum Zeno effect (QZE) in which the phase-noise intensity is much stronger than the inverse correlation time of the stimulated process. We also investigate the spin-nematic squeezing in the process of spin-mixing dynamics and show the squeezing is restrained by the QZE.
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页数：6
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