Bopp算符和相空间自旋动力学:应用于转动量子布朗运动
Bopp operators and phase-space spin dynamics: Application to rotational quantum brownian motion
摘要:
正如已经知道的非相对论性的无自旋粒子,波普算子提供了一个优雅和简单的方法来计算在量子力学的相空间公式的准概率分布的动力学。在这项工作中,我们提出了一个推广的Bopp算子的自旋和应用我们的结果的情况下,开放的自旋系统。这种方法允许以透明的方式采取经典极限,恢复相应的福克-普朗克方程。
英文摘要:
As already known for nonrelativistic spinless particles, Bopp operators give an elegant and simple way to compute the dynamics of quasiprobability distributions in the phase space formulation of Quantum Mechanics. In this work, we present a generalization of Bopp operators for spins and apply our results to the case of open spin systems. This approach allows to take the classical limit in a transparent way, recovering the corresponding Fokker-Planck equation.
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