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

Autor(es)

Werlang, T. ^[1] ; Dodonov, A. V. ^[1] ; Duzzioni, E. I. ^[2] ; Villas-Boas, C. J. ^[1]

Afiliação do(s) autor(es)

^[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

• Tipo de documento: Artigo Científico
• Fonte: Physical Review A; v. 78, n. 5, p. 053805, 2008.
• Citações Web of Science: 69

Resumo

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)

• Processo FAPESP: 05/04105-5 - Óptica e informação quânticas com átomos, íons e campos
• Beneficiário: Salomon Sylvain Mizrahi
• Modalidade de apoio: Auxílio à Pesquisa - Temático