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TWO-PHOTON ABSORPTION AND EMISSION PROCESS

FRANCO FAGNOLA

Dipartimento di Matematica "F. Brioschi", Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy

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and

ROBERTO QUEZADA

Departamento de Matemáticas, UAM-Iztapalapa, Av. San Rafael Atlixco 186, Col Vicentina, 09340 México D.F., México

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https://doi.org/10.1142/S0219025705002116Cited by:28 (Source: Crossref)

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.

Keywords:

AMSC: 46L55, 82C10, 60J27

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