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arXiv · 0811.3980

Time-reversal frameness and superselection

Gilad Gour·Barry C. Sanders·Peter S. Turner
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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.

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Gilad Gour, Barry C. Sanders, Peter S. Turner. 2009-10-19. Time-reversal frameness and superselection. https://doi.org/10.1063/1.3243821

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