Entanglement of a microcanonical ensemble

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.

10 pages

References in corpus (3)

• Entanglement dynamics of electron-electron scattering in low-dimensional semiconductor systems
• Dynamical entanglement and chaos: the case of Rydberg molecules
• A generalized quantum microcanonical ensemble

Cited by in corpus (2)

• Ensemble averaged entanglement of two-particle states in Fock space
• Canonical and micro-canonical typical entanglement of continuous variable systems