Strong friction limit in quantum mechanics: The quantum Smoluchowski equation

被引：108

作者：

Ankerhold, J ^{[1
]}

Pechukas, P ^{[1
]}

Grabert, H ^{[1
]}

机构：

[1] Univ Freiburg, Fak Phys, D-79104 Freiburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 08期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.87.086802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

For a quantum system coupled to a heat bath environment the strong friction limit is studied starting from the exact path integral formulation. Generalizing the classical Smoluchowski limit to low temperatures, a time evolution equation for the position distribution is derived and the strong role of quantum fluctuations in this limit is revealed.

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页码：86802 / 1

页数：4

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