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arXiv 2407.04423quant-ph
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通过多芯光纤进行纠缠操控

Entanglement manipulation through multicore fibres

Carlo Marconi, Elena Fanella, Davide Bacco, Alessandro Zavatta

AI总结:

本文提出利用多芯光纤中纤芯间串扰作为量子信道,生成两个 qudit 的束缚纠缠态,从而将多芯光纤的应用从量子通信扩展到纠缠态制备。

摘要:

多芯光纤近年来在量子通信任务背景下获得了相当大的关注,其在同一通道的不同纤芯中传输多个量子态的能力使其成为实现可扩展量子网络的有前景的候选方案。在此,我们展示多芯光纤不仅可以有效地用于通信目的,还可以用于纠缠态的生成。通过利用完全正定保迹映射的形式体系,我们将多芯光纤的作用描述为一个量子信道,并提出一个协议来实现两个 qudit 的束缚纠缠态。值得注意的是,光纤纤芯之间串扰的存在对于生成此类态是至关重要的。

英文摘要:

Multicore fibres are recently gaining considerable attention in the context of quantum communication tasks, where their capability to transmit multiple quantum states along different cores of the same channel make them a promising candidate for the implementation of scalable quantum networks. Here, we show that multicore fibres can be effectively used not only for the scope of communication but also for the generation of entangled states. By exploiting the formalism of completely positive trace preserving maps, we describe the action of a multicore fibre as a quantum channel and propose a protocol to implement bound entangled states of two qudits. Notably, the presence of crosstalk among the cores of the fibre is fundamental for the generation of such states.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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