Entanglement of a microcanonical ensemble

Details Entanglement of a microcanonical ensemble Entanglement of a microcanonical ensemble

2006-11-13

arxiv.org/abs/quant-ph/0611135v1

J. Phys. A 40, 2475-2483 (2007)

Physics

Quantum Physics

10 pages

Scientific paper

10.1088/1751-8113/40/10/016

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.

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