Multi-hop joint remote state preparation of general hybrid entangled multi-qudit states via distinct Einstein-Podolsky-Rosen channels

IF 2.5 Q3 QUANTUM SCIENCE & TECHNOLOGY IET Quantum Communication Pub Date : 2024-01-27 DOI:10.1049/qtc2.12084
Zongyi Li, Yuzhen Wei, Min Jiang
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Abstract

Joint Remote State Preparation provides a useful way to securely transfer the known quantum states to the distant nodes. However, the limitation of resources often leads to the quantum channels constructed by distributed entangled pairs being incompatible with the transmitted states. In order to overcome this problem, a novel Joint Remote State Preparation protocol was proposed for transmitting general multi-qudit states over quantum networks, providing a promising pathway to utilise the available Einstein-Podolsky-Rosen (EPR) channels with different levels. Several scenarios under noisy environments were discussed and some properties of the fidelity when transmitting the multi-qudit state were demonstrated. It was demonstrated that both the prepared state and the kind of the noises could restrict the number of the participant nodes. Our scheme leverages the existing quantum resources, which addresses the issue of insufficient entanglement resources. This approach is easily adaptable to other quantum network structures, offering a potential solution for constructing a universal quantum network.

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通过不同的爱因斯坦-波多尔斯基-罗森通道对一般混合纠缠多量子态进行多跳联合远程状态制备
联合远程状态准备为将已知量子态安全地传输到遥远的节点提供了一种有用的方法。然而,由于资源的限制,分布式纠缠对构建的量子信道往往与传输的状态不兼容。为了克服这个问题,我们提出了一种新型的联合远程状态准备协议,用于在量子网络上传输一般的多量子态,为利用不同级别的爱因斯坦-波多尔斯基-罗森(EPR)通道提供了一条可行的途径。研究讨论了噪声环境下的几种情况,并展示了传输多比特态时保真度的一些特性。结果表明,准备状态和噪声种类都会限制参与节点的数量。我们的方案利用了现有的量子资源,解决了纠缠资源不足的问题。这种方法很容易适用于其他量子网络结构,为构建通用量子网络提供了潜在的解决方案。
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