未知状态的“辅助克隆”和“正交互补”
"Assisted cloning'' and "orthogonal-complementing" of an unknown state
摘要:
我们提出了一个协议,其中可以利用双量子和经典通道,以实现完美的“克隆”和“正交互补”的一个未知的状态,从一个国家的最小的援助(不透露输入状态是什么)。该协议的第一阶段需要通常的隐形传态,并在第二阶段,解密者通过单粒子测量过程解开剩余的纠缠态,并将多个经典比特(每个副本1-cbit)传送给不同的各方,以便产生完美的副本和互补副本。我们讨论了我们的协议,产生两个副本和三个副本(和补充副本)使用两个和四个粒子纠缠态,并建议如何推广这N个副本和补充副本使用多粒子纠缠态。
英文摘要:
We propose a protocol where one can exploit dual quantum and classical channels to achieve perfect ``cloning'' and ``orthogonal-complementing'' of an unknown state with a minimal assistance from a state preparer (without revealing what the input state is). The first stage of the protocol requires usual teleportation and in the second stage, the preparer disentangles the left-over entangled states by a single particle measurement process and communicates a number of classical bits (1-cbit per copy) to different parties so that perfect copies and complement copies are produced. We discuss our protocol for producing two copies and three copies (and complement copies) using two and four particle entangled state and suggest how to generalise this for N copies and complement copies using multiparticle entangled state.
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。