中国物理B(英文版)2024,Vol.33Issue(9) :382-387.DOI:10.1088/1674-1056/ad5d97

Entropy variances of pure coherent states in the diffusion channel

吴卫锋 方勇 付鹏
中国物理B(英文版)2024,Vol.33Issue(9) :382-387.DOI:10.1088/1674-1056/ad5d97

Entropy variances of pure coherent states in the diffusion channel

吴卫锋 1方勇 2付鹏2
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作者信息

  • 1. School of Mechanical and Electrical Engineering,Chizhou University,Chizhou 247000,China;Anhui Research Center of Semiconductor Industry Generic Technology,Chizhou 247000,China
  • 2. School of Mechanical and Electrical Engineering,Chizhou University,Chizhou 247000,China
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Abstract

Using the operator correspondence of the real and fictious modes in the thermo entangled state representation,we solve the quantum master equation describing the diffusion channel and obtain the Kraus operator-sum representation of its analytical solution.we find that the pure coherent states evolve into the new mixed thermal superposed states in the diffusion channel.Also,we investigate the statistical properties of the initial coherent states and their entropy evolutions in the diffusion channel,and find that the entropy evolutions are only related to the decay time and without the amplitudes of the initial coherent states.

Key words

entangled state representation/diffusion channel/coherent state/entropy evolution

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基金项目

Collaborative Innovation Project of University,Anhui Province(GXXT-2022-088)

出版年

2024
中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子:0.995
ISSN:1674-1056
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