三方系统中弱测量反转的纠缠恢复

IF 0.7 4区物理与天体物理 Q3 COMPUTER SCIENCE, THEORY & METHODS

International Journal of Quantum Information Pub Date : 2023-10-07 DOI:10.1142/s0219749923500375

Munsif Jan, Niaz Ali Khan

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引用次数: 0

摘要

噪声环境下的纠缠保护是实际量子信息通信中的重要任务。在本文中，我们研究了用弱测量反转方法恢复幅度阻尼三GHZ态的纠缠。特别地，我们强调了在恢复技术下三方系统的概率幅值的不等价的关键重要性。我们探讨了振幅阻尼噪声下，在没有和存在弱测量反转过程的情况下，最大和非最大三方纠缠态的情况。重要的是，非最大纠缠态被证明是通过弱测量反转程序恢复纠缠的一个很好的选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Entanglement recovery by weak measurement reversal in tripartite systems

Entanglement protection from noisy environments is an essential task in practical quantum information and communication. In this paper, we investigate the entanglement recovery of an amplitude-damped tripartite GHZ state by a weak-measurement reversal procedure. In particular, we emphasize the key importance of the inequivalency of probability amplitudes of the tripartite system under the recovery technique. We explore the maximal and non-maximal tripartite entangled state scenarios under amplitude damping noise in the absence and presence of weak measurement reversal procedures. Importantly, the non-maximal entangled state turns out to be a good choice for the entanglement recovery via weak-measurement reversal procedure.

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来源期刊

International Journal of Quantum Information 物理-计算机：理论方法

CiteScore

2.20

自引率

8.30%

发文量

审稿时长

10 months

期刊介绍： The International Journal of Quantum Information (IJQI) provides a forum for the interdisciplinary field of Quantum Information Science. In particular, we welcome contributions in these areas of experimental and theoretical research: Quantum Cryptography Quantum Computation Quantum Communication Fundamentals of Quantum Mechanics Authors are welcome to submit quality research and review papers as well as short correspondences in both theoretical and experimental areas. Submitted articles will be refereed prior to acceptance for publication in the Journal.