Entanglement dynamics in two-component Bose–Einstein condensates
Entanglement dynamics in two-component Bose–Einstein condensates
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DOI：
10.1088/1009-1963/15/6/007
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发表时间：
2006-06
期刊：
影响因子：
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通讯作者：
Ya-Jiang Hao;Jiu-Qing Liang
中科院分区：
文献类型：
--
作者：
Ya-Jiang Hao;Jiu-Qing Liang
基于含时薛定谔方程的精确解，我们得到了两个原子的超精细态通过调谐的绝热和时变的拉曼耦合所形成的两种玻色-爱因斯坦凝聚（BEC）系统在不同初态，特别是SU（2）相干态下，在有和没有非线性相互作用的情况下的纠缠动力学.结果表明，非线性相互作用对纠缠的影响只出现在一个较长的时间周期内，这取决于BEC参数。
Based on the exact solution of the time-dependent Schrödinger equation for two-species Bose–Einstein condensates (BECs) consisting of two hyperfine states of the atoms coupled by a tuned adiabatic and time-varying Raman coupling, we obtain analytically the entanglement dynamics of the system with various initial states, particularly the SU(2) coherent state, for both of cases with and without the nonlinear interactions. It is shown that the effect of nonlinear interaction on the entanglement appears only in a longer time period depending on the BEC parameters.