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Rabi model beyond the rotating-wave approximation: Generation of photons from vacuum through decoherence

2008; American Physical Society; Volume: 78; Issue: 5 Linguagem: Inglês

10.1103/physreva.78.053805

ISSN

1538-4446

Autores

T. Werlang, А. В. Додонов, Eduardo I. Duzzioni, Celso J. Villas-Bôas,

Tópico(s)

Quantum optics and atomic interactions

Resumo

We study numerically the dynamics of the Rabi Hamiltonian, describing the interaction of a single cavity mode and a two-level atom without the rotating wave approximation, subjected to damping and dephasing reservoirs included via usual Lindblad superoperators in the master equation. We show that the combination of the antirotating term and the atomic dephasing leads to linear asymptotic photons generation from vacuum. We reveal the origins of the phenomenon and estimate its importance in realistic situations.

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