AUTHOR=Salih Hatim TITLE=Protocol for Counterfactually Transporting an Unknown Qubit JOURNAL=Frontiers in Physics VOLUME=3 YEAR=2016 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2015.00094 DOI=10.3389/fphy.2015.00094 ISSN=2296-424X 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 traveling between Alice and Bob—no classical channel and no previously-shared entanglement.