Fast Generation of Time-Stationary Spin-1 Squeezed States by Nonadiabatic Control
Fast Generation of Time-Stationary Spin-1 Squeezed States by Nonadiabatic Control
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DOI：
10.1103/prxquantum.3.010328
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发表时间：
2021-09
期刊：
影响因子：
9.7
通讯作者：
Lin Xin;M. Chapman;T. Kennedy
中科院分区：
文献类型：
--
作者：
Lin Xin;M. Chapman;T. Kennedy
提出了一个在自旋为1的玻色凝聚体中产生时间定态压缩态的方案。该方法由一对外部磁场的受控猝灭组成，这允许在相变附近调谐系统哈密顿量。在大系统尺寸的限制下，系统的量子涨落可以用量子谐振子动力学很好地描述，并且该方法可以应用于在低能或高能极性态制备的自旋为1的气体.
A protocol for the creation of time-stationary squeezed states in a spin-1 Bose condensate is proposed. The method consists of a pair of controlled quenches of an external magnetic field, which allows tuning of the system Hamiltonian in the vicinity of a phase transition. The quantum fluctuations of the system are well described by quantum harmonic oscillator dynamics in the limit of large system size, and the method can be applied to a spin-1 gas prepared in the low- or high-energy polar states.