arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv quant-ph/0012129quant-phcond-mat.stat-mech
收藏

量子气体中的测试粒子

Test Particle in a Quantum Gas

Bassano Vacchini

摘要:

本文导出了一个具有Lindblad结构的主方程,它描述了一个测试粒子与宏观系统的相互作用,并用系统的算符值动力学结构因子表示。在自由费米气体或玻色气体的情况下,结果在布朗极限下进行评估,从而获得用于描述量子布朗运动的单生成元主方程,其中由于量子统计的校正被明确计算。玻尔兹曼和玻色或费米统计的摩擦系数进行了比较。

英文摘要:

A master equation with a Lindblad structure is derived, which describes the interaction of a test particle with a macroscopic system and is expressed in terms of the operator valued dynamic structure factor of the system. In the case of a free Fermi or Bose gas the result is evaluated in the Brownian limit, thus obtaining a single generator master equation for the description of quantum Brownian motion in which the correction due to quantum statistics is explicitly calculated. The friction coefficients for Boltzmann and Bose or Fermi statistics are compared.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑