Generation and storage of spin-nematic squeezing in a spinor Bose-Einstein condensate
Generation and storage of spin-nematic squeezing in a spinor Bose-Einstein condensate
复制标题
自旋玻色爱因斯坦凝聚中自旋向列挤压的产生和存储
DOI：
10.1103/physreva.92.023622
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发表时间：
2015-08-14
影响因子：
2.9
通讯作者：
Wang, Xiaoguang
中科院分区：
文献类型：
--
作者：
Huang, Yixiao;Xiong, Heng-Na;Wang, Xiaoguang
本文提出了一种利用周期性微波脉冲在旋量玻色-爱因斯坦凝聚体中存储自旋压缩的方案。适当的脉冲周期和相移可以增强压缩并保持较长时间，实现最大压缩的存储。我们还提出了一种方法，通过绝热扫描的磁场产生自旋压缩真空，这是与可忽略的压缩模式的占用。结果表明，该方法可以很容易地实现的铁磁和反铁磁凝聚体。
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.