热环境中一般二次态的退相干动力学

IF 4.6 2区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Chinese Journal of Physics Pub Date : 2025-08-29 DOI:10.1016/j.cjph.2025.08.034

Zhi-Long Wan , Hong-Chun Yuan , Xiao-Lei Yin , Chang-Ying Wang , Yi-Xing Wang

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引用次数: 0

摘要

在我们最近完成的工作[Chinese J. Phys. 94(2025) 215]的基础上，我们将分析扩展到一般的二次态，并关注其在热环境中的分析演变，在热环境中，它始终保持与输入状态相同的形式。我们还研究了热环境下的平均光子数、光子计数分布和Wigner分布函数。此外，利用冯·诺依曼熵的微分表示，对热噪声二次态的熵演化进行了解析和数值研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Decoherence dynamics of a general quadratic state in a thermal environment

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Decoherence dynamics of a general quadratic state in a thermal environment

Building on our recently completed work [Chinese J. Phys. 94 (2025) 215], we extend the analysis to a general quadratic state and focus on its analytical evolution in a thermal environment, where it retains the same form as the input state throughout. We also investigate the mean photon number, photon counting distribution, and Wigner distribution function in the thermal environment. In addition, using the differential representation of the von Neumann entropy, we analytically and numerically study the entropy evolution of the quadratic state for thermal noise.

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来源期刊

Chinese Journal of Physics 物理-物理：综合

CiteScore

8.50

自引率

10.00%

发文量

361

审稿时长

44 days

期刊介绍： The Chinese Journal of Physics publishes important advances in various branches in physics, including statistical and biophysical physics, condensed matter physics, atomic/molecular physics, optics, particle physics and nuclear physics. The editors welcome manuscripts on: -General Physics: Statistical and Quantum Mechanics, etc.- Gravitation and Astrophysics- Elementary Particles and Fields- Nuclear Physics- Atomic, Molecular, and Optical Physics- Quantum Information and Quantum Computation- Fluid Dynamics, Nonlinear Dynamics, Chaos, and Complex Networks- Plasma and Beam Physics- Condensed Matter: Structure, etc.- Condensed Matter: Electronic Properties, etc.- Polymer, Soft Matter, Biological, and Interdisciplinary Physics. CJP publishes regular research papers, feature articles and review papers.