Quantum Langevin model for nonequilibrium condensation (Articolo in rivista)

Type
Label
  • Quantum Langevin model for nonequilibrium condensation (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevA.90.023633 (literal)
Alternative label
  • Chiocchetta, Alessio; Carusotto, Iacopo (2014)
    Quantum Langevin model for nonequilibrium condensation
    in Physical review. A
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Chiocchetta, Alessio; Carusotto, Iacopo (literal)
Pagina inizio
  • 023633 (literal)
Pagina fine
  • 023633 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 90 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 15 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 2 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • SISSA - International School for Advanced Studies, via Bonomea 265, Trieste, 34136, Italy; INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, Via Sommarive 14, Povo, I-38123, Italy; INFN - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy (literal)
Titolo
  • Quantum Langevin model for nonequilibrium condensation (literal)
Abstract
  • We develop a quantum model for nonequilibrium Bose-Einstein condensation of photons and polaritons in planar microcavity devices. The model builds on laser theory and includes the spatial dynamics of the cavity field, a saturation mechanism, and some frequency dependence of the gain: quantum Langevin equations are written for a cavity field coupled to a continuous distribution of externally pumped two-level emitters with a well-defined frequency. As an example of application, the method is used to study the linearized quantum fluctuations around a steady-state condensed state. In the good-cavity regime, an effective equation for the cavity field only is proposed in terms of a stochastic Gross-Pitaevskii equation. Perspectives in view of a full quantum simulation of the nonequilibrium condensation process are finally sketched. (literal)
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