Generation and storage of spin-nematic squeezing in a spinor Bose-Einstein condensate

被引：17

作者：

Huang, Yixiao ^{[1
,2
,3
]}

Xiong, Heng-Na ^{[4
]}

Sun, Zhe ^{[5
]}

Wang, Xiaoguang ^{[6
]}

机构：

[1] Zhejiang Univ Sci & Technol, Sch Sci, Hangzhou 310023, Zhejiang, Peoples R China

[2] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China

[3] Univ Hong Kong, Ctr Theoret & Computat Phys, Hong Kong, Hong Kong, Peoples R China

[4] Zhejiang Univ Technol, Dept Appl Phys, Hangzhou 310023, Zhejiang, Peoples R China

[5] Hangzhou Normal Univ, Dept Phys, Hangzhou 310036, Zhejiang, Peoples R China

[6] Zhejiang Univ, Dept Phys, Zhejiang Inst Modern Phys, Hangzhou 310027, Zhejiang, Peoples R China

来源：

PHYSICAL REVIEW A | 2015年 / 92卷 / 02期

关键词：

ENTANGLEMENT; ENSEMBLE; STATES; ATOMS; NOISE;

D O I：

10.1103/PhysRevA.92.023622

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a scheme to store the spin-nematic squeezing in a spinor Bose-Einstein condensate by applying periodic microwave pulses. For a proper pulse period and phase shift, the squeezing can be enhanced and maintained for a long time, which realizes the storage of the maximal squeezing. We also propose a method to generate the spin-nematic squeezed vacuum, which is associated with negligible occupation of the squeezed modes, through an adiabatic sweep of the magnetic field. It is shown that the method can be readily implemented for both ferromagnetic and antiferromagnetic condensates.

引用

页数：5

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