论文标题
相干量子通道歧视
Coherent Quantum Channel Discrimination
论文作者
论文摘要
本文引入了连贯的量子通道歧视，作为常规量子通道歧视的连贯版本。相干的通道歧视在这里用作验证者和鄙视器之间的量子交互式证明系统，其中谚语的目标是区分叠加中所谓的两个通道，以便在末尾提炼铃铛状态。这里考虑的关键措施是提取钟状状态的成功概率，我证明，在量子超通道的作用下，这种成功概率不会增加，从而确立了这一措施作为通道可区分性的基本量度。另外，我就常规渠道歧视的成功概率建立了一些成功概率的范围。最后，我提供了一个明确的半明确程序，可以计算成功概率。
This paper introduces coherent quantum channel discrimination as a coherent version of conventional quantum channel discrimination. Coherent channel discrimination is phrased here as a quantum interactive proof system between a verifier and a prover, wherein the goal of the prover is to distinguish two channels called in superposition in order to distill a Bell state at the end. The key measure considered here is the success probability of distilling a Bell state, and I prove that this success probability does not increase under the action of a quantum superchannel, thus establishing this measure as a fundamental measure of channel distinguishability. Also, I establish some bounds on this success probability in terms of the success probability of conventional channel discrimination. Finally, I provide an explicit semi-definite program that can compute the success probability.
