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arXiv 2302.08522quant-phmath-phmath.MP
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连续变量基于端口的隐形传态

Continuous variable port-based teleportation

Jason L. Pereira, Leonardo Banchi, Stefano Pirandola

AI总结:

本文提出了连续变量系统中基于端口的隐形传态的一般表述,详细研究了 $N=2$ 的情况,将所得信道解释为能量截断,并分析了该限制下可自然模拟的信道类型。

摘要:

基于端口的隐形传态是标准隐形传态协议的推广,它不需要接收方进行酉操作。其代价是需要 $N>1$ 个纠缠对,而标准隐形传态协议中 $N=1$。由于无需校正酉操作,基于端口的隐形传态可作为基础理论工具,用通用资源模拟任意信道,应用于研究量子通信、密码学和传感的基本极限,并定义通用可编程量子计算机。在此,我们引入连续变量系统中基于端口的隐形传态的一般表述,并详细研究 $N=2$ 的情况。具体而言,我们将所得信道解释为能量截断,并分析了在此限制下可自然模拟的信道类型。

英文摘要:

Port-based teleportation is generalization of the standard teleportation protocol which does not require unitary operations by the receiver. This comes at the price of requiring $N>1$ entangled pairs, while $N=1$ for the standard teleportation protocol. The lack of correction unitaries allows port-based teleportation to be used as a fundamental theoretical tool to simulate arbitrary channels with a general resource, with applications to study fundamental limits of quantum communication, cryptography and sensing, and to define general programmable quantum computers. Here we introduce a general formulation of port-based teleportation in continuous variable systems and study in detail the $N=2$ case. In particular, we interpret the resulting channel as an energy truncation and analyse the kinds of channels that can be naturally simulated after this restriction.

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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