Time-reversal frameness and superselection
Quantum Physics
2009-10-20 v2
Abstract
We show that appropriate superpositions of motional states are a reference frame resource that enables breaking of time -reversal superselection so that two parties lacking knowledge about the other's direction of time can still communicate. We identify the time-reversal reference frame resource states and determine the corresponding frameness monotone, which connects time-reversal frameness to entanglement. In contradistinction to other studies of reference frame quantum resources, this is the first analysis that involves an antiunitary rather than unitary representation.
Cite
@article{arxiv.0811.3980,
title = {Time-reversal frameness and superselection},
author = {Gilad Gour and Barry C. Sanders and Peter S. Turner},
journal= {arXiv preprint arXiv:0811.3980},
year = {2009}
}
Comments
10 pp