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处于耗散玻色子热浴、外部磁场以及两个随时间变化的电场中的二维开放量子系统。

Two-dimensional open quantum system in dissipative bosonic heat bath, external magnetic field, and two time-dependent electric fields.

作者信息

Alpomishev E Kh, Adamian G G, Antonenko N V

机构信息

Joint Institute for Nuclear Research, 141980 Dubna, Russia.

Institute of Nuclear Physics, 100214 Tashkent, Uzbekistan.

出版信息

Phys Rev E. 2024 Apr;109(4-1):044125. doi: 10.1103/PhysRevE.109.044125.

Abstract

Non-Markovian dynamics of a charged particle in a two-dimensional harmonic oscillator linearly coupled to a neutral bosonic heat bath is investigated in an external uniform magnetic field and two perpendicular time-dependent electric fields. The analytical expressions for the time-dependent and asymptotic angular momentum are derived for the Markovian and non-Markovian dynamics. The dependence of the angular momentum on the frequency of the electric field, cyclotron frequency, collective frequency, and anisotropy of the heat bath is studied. The angular momentum (or magnetization) of a charged particle can be ruled by varying the frequency of the electric field.

摘要

研究了在外部均匀磁场和两个垂直的随时间变化的电场中,二维简谐振子中线性耦合到中性玻色热库的带电粒子的非马尔可夫动力学。推导了马尔可夫和非马尔可夫动力学下随时间变化的和渐近角动量的解析表达式。研究了角动量对电场频率、回旋频率、集体频率和热库各向异性的依赖性。带电粒子的角动量(或磁化强度)可以通过改变电场频率来控制。

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