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Entropy evolution law of a general linear state for diffusion noise |
| Yingyu Zhang(张映玉)1,† and Yixing Wang(王依兴)2,‡ |
1 School of Information Science and Technology, Hainan Normal University, Haikou 571127, China;
2 School of Automation and Electrical Engineering, Linyi University, Linyi 276000, China |
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Abstract Based on the Kraus operator-sum representation of the analytical solution of the diffusion equation, we obtain the evolution of a general linear state in the diffusion channel. Also, we study the quantum statistical properties of the initial general linear state and its von-Neumann entropy evolution in the diffusion channel, especially find that the entropy evolution is influenced by the diffusion noise and the thermal parameter but without the displacement.
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Received: 31 December 2024
Revised: 28 April 2025
Accepted manuscript online: 07 May 2025
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PACS:
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42.50.-p
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(Quantum optics)
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03.65.-w
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(Quantum mechanics)
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05.30.-d
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(Quantum statistical mechanics)
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| Fund: Project supported by the Natural Science Foundation of Hainan Province, China (Grant Nos. 621RC741 and 622RC668). |
Corresponding Authors:
Yingyu Zhang, Yixing Wang
E-mail: zhyy8070@126.com;wangyixing@lyu.edu.cn
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Cite this article:
Yingyu Zhang(张映玉) and Yixing Wang(王依兴) Entropy evolution law of a general linear state for diffusion noise 2025 Chin. Phys. B 34 094206
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