Predicting spinor condensate dynamics from simple principles.
Predicting spinor condensate dynamics from simple principles.
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从简单的原理预测旋量凝聚动力学。
DOI：
10.1103/physrevlett.99.020404
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发表时间：
2006
影响因子：
8.6
通讯作者：
M. Lewenstein
中科院分区：
文献类型：
--
作者：
M. Moreno;J. Mur;M. Guilleumas;A. Polls;A. Sanpera;M. Lewenstein
本文研究了准一维F=1凝聚体在零温和有限温下的自旋动力学。这些非线性系统所表现出的丰富的动力学演化可以用令人惊讶的简单原理来解释：零温度下的能量最小化和高温下的熵最大化。我们的分析结果的均匀的情况下，证实了在各种初始条件下的封闭冷凝的数值模拟。这些预测与最近的实验观察结果进行了定性比较，因此可以作为正在进行的实验的指导。
We study the spin dynamics of quasi-one-dimensional F=1 condensates both at zero and finite temperatures for arbitrary initial spin configurations. The rich dynamical evolution exhibited by these nonlinear systems is explained by surprisingly simple principles: minimization of energy at zero temperature and maximization of entropy at high temperature. Our analytical results for the homogeneous case are corroborated by numerical simulations for confined condensates in a wide variety of initial conditions. These predictions compare qualitatively well with recent experimental observations and can, therefore, serve as a guidance for ongoing experiments.