Completely positive quantum dissipation

被引：111

作者：

Vacchini, B

机构：

[1] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[2] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy

[3] Univ Marburg, Fachbereich Phys, D-35032 Marburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.84.1374

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A completely positive master equation describing quantum dissipation for a Brownian particle is derived starting from microphysical collisions, exploiting a recently introduced approach to subdynamics of a macrosystem. The obtained equation can be cast into Lindblad form with a single generator for each Cartesian direction. Temperature dependent friction and diffusion coefficients for both position and momentum are expressed in terms of the collision cross section.

引用

页码：1374 / 1377

页数：4

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