Quantum Smoluchowski equation
Quantum Smoluchowski equation
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量子 Smoluchowski 方程
作者：
P. Pechukas;J. Ankerhold;H. Grabert
分析了量子布朗运动的Caldeira-Leggett模型的强摩擦极限.在这个Smoluchowski极限中，布朗粒子的密度算子在坐标中本质上是对角的，并且对角元素满足经典的Smoluchowski方程。这个结果不能从量子布朗运动的主方程中得到，无论这些方程是否是Lindblad形式。
The strong friction limit of the Caldeira‐Leggett model for quantum Brownian motion is analyzed. In this Smoluchowski limit the density operator of the Brownian particle is essentially diagonal in coordinate, and the diagonal element satisfies the classical Smoluchowski equation. This result cannot be obtained from the master equations that have been proposed for quantum Brownian motion, whether or not these equations are of Lindblad form.