arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1709.01396quant-ph
收藏

基于不确定原理的无条件安全量子比特承诺

Unconditionally secure quantum bit commitment based on the uncertainty principle

Guang Ping He

摘要:

无条件安全的量子比特承诺(QBC)被认为是不可能的。但是不通过证明是基于Hughston-Jozsa-Wootters(HJW)定理(a.k.a. Uhlmann定理)。近年来研究发现,在高维系统中,存在着一些能在量子操纵中表现出混沌效应的态,这使得基于HJW定理的攻击策略必须具有分辨量子态的能力,而这种分辨能力的细微差别是不确定原理所不允许的。借助这一发现,在这里,我们提出了一个简单的QBC协议,设法逃避不去证明。

英文摘要:

Unconditionally secure quantum bit commitment (QBC) was considered impossible. But the no-go proofs are based on the Hughston-Jozsa-Wootters (HJW) theorem (a.k.a. the Uhlmann theorem). Recently it was found that in high-dimensional systems, there exist some states which can display a chaos effect in quantum steering, so that the attack strategy based on the HJW theorem has to require the capability of discriminating quantum states with very subtle difference, to the extent that is not allowed by the uncertainty principle. With the help of this finding, here we propose a simple QBC protocol which manages to evade the no-go proofs.

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。

↑