English

Protocol for Counterfactually Transporting an Unknown Qubit

Quantum Physics 2016-06-14 v4

Abstract

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 the first 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.

Keywords

Cite

@article{arxiv.1404.2200,
  title  = {Protocol for Counterfactually Transporting an Unknown Qubit},
  author = {Hatim Salih},
  journal= {arXiv preprint arXiv:1404.2200},
  year   = {2016}
}

Comments

Minor improvements

R2 v1 2026-06-22T03:46:02.462Z