Entanglement in stationary nonequilibrium states at high energies
arXiv:1112.4415 · doi:10.1103/PhysRevA.85.012324
Abstract
In recent years it has been found that quantum systems can posses entanglement in equilibrium thermal states provided temperature is low enough. In the present work we explore a possibility of having entanglement in nonequilibrium stationary states. We show analytically that, in a simple one-dimensional spin chain, there is entanglement even at highest attainable energies; that is, starting from an equilibrium state at infinite temperature, a sufficiently strong driving can induce entanglement, even in the thermodynamic limit. We also show that dissipative dephasing, on the other hand, destroys entanglement.
7 pages, 11 figures; v2: minor typos corrected
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