On a quite recent proposal of faster than light quantum communication

TL;DR

This paper critically evaluates a recent faster-than-light quantum communication proposal, demonstrating its flaws due to improper approximations, and concludes it does not enable superluminal communication.

Contribution

It provides a critical analysis of Kalamidas's proposal, clarifying why it fails and highlighting the importance of correct approximation methods in such theoretical claims.

Findings

The proposal does not enable faster-than-light communication.

The mistake is due to inappropriate use of approximations.

The analysis clarifies the invalidity of the recent proposal.

Abstract

In a recent paper, Kalamidas has advanced a new proposal of faster than light communication which has not yet been proved invalid. In this paper we show that, as all previous proposals, it does not work. The mistake arises from an inappropriate use of some approximations.