We analyze the two-photon absorption and emission process and characterize the stationary states at zero and positive temperature. We show that entangled stationary states exist only at zero temperature and, at positive temperature, there exists infinitely many commuting invariant states satisfying the detailed balance condition.

Two-photon absorption and emission process

FAGNOLA, FRANCO;
2005

Abstract

We analyze the two-photon absorption and emission process and characterize the stationary states at zero and positive temperature. We show that entangled stationary states exist only at zero temperature and, at positive temperature, there exists infinitely many commuting invariant states satisfying the detailed balance condition.
quantum dynamical semigroup; detailed balance; KMS condition; two-photon absorption and emission process
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/560173
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