Improving bidirectional controlled remote preparation of arbitrary number of qudits in noisy environment

IF 2.6 3区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
Si Jin, Songya Ma and Siyi Li
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引用次数: 0

Abstract

By elaborately selecting entangled channel, we put forward a universal scheme to achieve bidirectional remote preparation of qudit states with arbitrary numbers of particles under the control of the supervisor. Each sender needs to perform a positive-operator-value measurement and a projective measurement, while the supervisor requires to execute a projective measurement. Based on their measurement outcomes, the receivers can recover the desired states concurrently by carrying out single-qudit generalized Pauli operations which are given by general formulas. A point to highlight is that classical communication cost is greatly reduced at the supervisor’s broadcast channel by taking advantage of network coding. In addition, we analyze the influence of amplitude-damping and phase-damping noises, and utilize weak measurement and environment-assisted measurement to suppress noise.
改进嘈杂环境中任意数量量子点的双向可控远程制备
通过对纠缠信道的精心选择,我们提出了一种通用方案,可在监督者的控制下实现任意数量粒子的双向远程准备态。每个发送方需要执行一次正操作值测量和一次投影测量,而监督方则需要执行一次投影测量。根据测量结果,接收者可以通过执行一般公式给出的单次广义保利运算,同时恢复所需的状态。值得强调的一点是,通过利用网络编码,监督者广播信道的经典通信成本大大降低。此外,我们还分析了振幅阻尼和相位阻尼噪声的影响,并利用弱测量和环境辅助测量来抑制噪声。
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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来源期刊
Physica Scripta
Physica Scripta 物理-物理:综合
CiteScore
3.70
自引率
3.40%
发文量
782
审稿时长
4.5 months
期刊介绍: Physica Scripta is an international journal for original research in any branch of experimental and theoretical physics. Articles will be considered in any of the following topics, and interdisciplinary topics involving physics are also welcomed: -Atomic, molecular and optical physics- Plasma physics- Condensed matter physics- Mathematical physics- Astrophysics- High energy physics- Nuclear physics- Nonlinear physics. The journal aims to increase the visibility and accessibility of research to the wider physical sciences community. Articles on topics of broad interest are encouraged and submissions in more specialist fields should endeavour to include reference to the wider context of their research in the introduction.
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