Comment on "Information flow of quantum states interacting with closed timelike curves"
Quantum Physics
2011-11-24 v2 General Relativity and Quantum Cosmology
Abstract
We show that recent results on the interaction of causality-respecting particles with particles on closed timelike curves derived in [Phys. Rev. A 82, 062330 (2010)] depend on ambiguous assumption about the form of the state which is inputted into the proposed equivalent circuit. Choosing different form of this state leads to opposite conclusion on the power of closed timelike curves.
Cite
@article{arxiv.1103.0774,
title = {Comment on "Information flow of quantum states interacting with closed timelike curves"},
author = {Waldemar Klobus and Andrzej Grudka and Antoni Wojcik},
journal= {arXiv preprint arXiv:1103.0774},
year = {2011}
}