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

Werlang, T.; Dodonov, A. V.; Duzzioni, E. I.; Villas-Boas, C. J.

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(Reference retrieved automatically from Google Scholar through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):	Werlang, T. ^[1] ; Dodonov, A. V. ^[1] ; Duzzioni, E. I. ^[2] ; Villas-Boas, C. J. ^[1] Total Authors: 4
Affiliation:	^[1] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Paulo - Brazil ^[2] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Sao Paulo - Brazil Total Affiliations: 2
Document type:	Journal article
Source:	Physical Review A; v. 78, n. 5, p. 053805, 2008.
Web of Science Citations:	69
Abstract
We study numerically the dynamics of the Rabi Hamiltonian, which describes the interaction of a single cavity mode and a two-level atom without the rotating wave approximation. We analyze this system subjected to damping and dephasing reservoirs, included via the usual Lindblad superoperators in the master equation. We show that the combination of the antirotating term and the atomic dephasing leads to linear asymptotic photon generation from the vacuum. We reveal the origins of the phenomenon and estimate its importance in realistic situations. (AU)

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