Comment on "Multitime quantum communication: Interesting but not counterfactual"
Quantum Physics
2023-06-30 v1
Abstract
In a recent paper, Robert Griffiths [Phys. Rev. A 107, 062219 (2023)] analyzed a protocol for transmission of information between two parties introduced by Salih et al. [Phys. Rev. Lett. 110, 170502 (2013)]. There is a considerable controversy about the counterfactuality of this protocol, and Griffiths suggested to resolve it by introducing a new measure of channel usage, which he called "Cost". I argue that this measure is not appropriate because the original interaction-free measurement protocol which triggered the definition of the concept of counterfactuality is not counterfactual according to this measure.
Keywords
Cite
@article{arxiv.2306.16756,
title = {Comment on "Multitime quantum communication: Interesting but not counterfactual"},
author = {Lev Vaidman},
journal= {arXiv preprint arXiv:2306.16756},
year = {2023}
}
Comments
Comment on arXiv:2301.01730