Entanglement of a microcanonical ensemble
Quantum Physics
2009-11-13 v1
Abstract
We replace time-averaged entanglement by ensemble-averaged entanglement and derive a simple expression for the latter. We show how to calculate the ensemble average for a two-spin system and for the Jaynes-Cummings model. In both cases the time-dependent entanglement is known as well so that one can verify that the time average coincides with the ensemble average.
Cite
@article{arxiv.quant-ph/0611135,
title = {Entanglement of a microcanonical ensemble},
author = {Tobias Verhulst and Jan Naudts},
journal= {arXiv preprint arXiv:quant-ph/0611135},
year = {2009}
}
Comments
10 pages