论文标题
反事实隐藏的电信
Counterfactual Concealed Telecomputation
论文作者
论文摘要
分布式计算是一个增长最快的字段 - 启用虚拟计算，并行计算和分布式存储。通过利用反事实技术，我们设计了一个分布式的盲量量子计算协议，以对任何输入状态进行通用的两数分控制的统一操作，而无需使用预赫里德纠缠，而无需交换远程各方之间的物理粒子。该分布式协议允许BOB以概率的方式对Alice的Qubit进行反事实将任意的单一操作员应用于Alice的Qubit，而无需向她透露操作员，并使用控制量子验证者（称为反事实隐藏的电信（CCT））。结果表明，该协议对于一般输入状态有效，并且单量单位传送是CCT的一种特殊情况。 CCT的量子电路可以使用（链式）量子Zeno门实现，如果Alice和Bob的初始复合状态是钟形状态，则协议可以通过简化的电路实现来确定性。
Distributed computing is a fastest growing field -- enabling virtual computing, parallel computing, and distributed storage. By exploiting the counterfactual techniques, we devise a distributed blind quantum computation protocol to perform a universal two-qubit controlled unitary operation for any input state without using preshared entanglement and without exchanging physical particles between remote parties. This distributed protocol allows Bob to counterfactully apply an arbitrary unitary operator to Alice's qubit in probabilistic fashion, without revealing the operator to her, using a control qubit -- called the counterfactual concealed telecomputation (CCT). It is shown that the protocol is valid for general input states and that single-qubit unitary teleportation is a special case of CCT. The quantum circuit for CCT can be implemented using the (chained) quantum Zeno gates and the protocol becomes deterministic with simplified circuit implementation if the initial composite state of Alice and Bob is a Bell-type state.
