通过量子弱测量技术提高受控循环远距离传输的保真度，以对抗振幅阻尼导致的退相干现象

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

International Journal of Quantum Information Pub Date : 2024-02-01 DOI:10.1142/s021974992350051x

D. Singh, Sanjeev Kumar

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引用次数: 0

摘要

本研究的重点是振幅阻尼噪声的影响，这种噪声会降低现有循环量子传送方案中传送量子态的保真度[V. Verma, D. Yadav and D. K. Mishra, Opt. Quantum Electron. 53 (2021) 1]。CQT 方案由三个参与者执行循环远距传输，并由一个控制器对协议进行监督。我们还提出了弱测量和反向测量操作作为潜在的解决方案，以对抗噪声引起的退相干并提高现有 CQT 方案的保真度。仿真结果表明，在实施潜在解决方案时，保真度计算得到了改善。这些发现为实际情况下的量子信息通信带来了巨大的潜力。

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Enhancing the fidelity of controlled cyclic teleportation via quantum weak measurement techniques to combat the decoherence due to amplitude damping

This study focuses on the impact of amplitude-damping noise, which diminishes the fidelity of the teleported quantum state on an existing cyclic quantum teleportation scheme [V. Verma, D. Yadav and D. K. Mishra, Opt. Quantum Electron. 53 (2021) 1]. The CQT scheme involves three participants performing a cyclic teleportation along with a controller to supervise the protocol. We also propose weak measurement and reversal measurement operations as potential solutions to combat the noise-induced decoherence and improve the fidelity of the existing CQT scheme. The simulation results showcase the improvements achieved in the fidelity calculation when implementing the potential solutions. The findings hold immense potential for quantum information communications in practical situations.

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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.