Comment on "Protocol for Direct Counterfactual Quantum Communication" [arXiv:1206.2042]
Lev Vaidman
TL;DR
This paper critiques a recent quantum communication protocol, arguing it is only counterfactual for one bit type, highlighting limitations in its claimed counterfactuality.
Contribution
It provides a critical analysis showing the protocol's counterfactuality is limited to a specific bit type, challenging its claimed advantages.
Findings
The protocol is only counterfactual for one bit type.
It reveals limitations in the protocol's counterfactual claims.
The critique clarifies the scope of counterfactuality in the protocol.
Abstract
I argue that recent "Protocol for Direct Counterfactual Quantum Communication" by Salih et al. [PRL 110, 170502 (2013), arXiv:1206.2042] is counterfactual only for one type of the information bit.
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