Protocol for Counterfactually Transporting an Unknown Qubit

Frontiers in Physics

Salih, Hatim¹ 

[1] Independent Researcher, London, UK

关键词: Interaction-free measurement;    Zeno effect;    counterfactual communication;    Entanglement generation;    quantum teleportation;   

DOI  :  10.3389/fphy.2015.00094

学科分类：物理（综合）

来源: Frontiers

【 摘 要 】

Quantum teleportation circumvents the uncertainty principle using dual channels: a quantum one consisting of previously-shared entanglement, and a classical one, together allowing the disembodied transport of an unknown quantum state over distance. It has recently been shown that a classical bit can be counterfactually communicated between two parties in empty space, “Alice” and “Bob”. Here, by using our “dual” version of the chained quantum Zeno effect to achieve a counterfactual CNOT gate, we propose a protocol for transporting an unknown qubit counterfactually, that is without any physical particles travelling between Alice and Bob—no classical channel and no previously-shared entanglement.

【 授权许可】

CC BY