New structures in the theory of the laser model. II. Microscopic dynamics and a nonequilibrium entropy principle

Fabio Bagarello, Fabio Bagarello, Geoffrey L. Sewell

Risultato della ricerca: Article

17 Citazioni (Scopus)

Abstract

In a recent article, Alli and Sewell [J. Math. Phys. 36, 5598 (1995)] formulated a new version of the Dicke-Hepp-Lieb laser model in terms of quantum dynamical semigroups, and thereby extended the macroscopic picture of the model. In the present article, we complement that picture with a corresponding microscopic one, which carries the following new results. (a) The local microscopic dynamics of the model is piloted by the classical, macroscopic field, generated by the collective action of its components; (b) the global state of the system carries no correlations between its constituent atoms after transient effects have died out; and (c) in the latter situation, the state of the system at any time t maximizes its entropy density, subject to the constraints imposed by the instantaneous values of its macroscopic variables. © 1998 American Institute of Physics.
Lingua originaleEnglish
pagine (da-a)2730-2747
Numero di pagine18
RivistaJournal of Mathematical Physics
Volume39
Stato di pubblicazionePublished - 1998

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Non-equilibrium
Entropy
entropy
Laser
Quantum Dynamical Semigroup
lasers
complement
Instantaneous
Complement
Maximise
Physics
Model
physics
atoms

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Mathematical Physics

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New structures in the theory of the laser model. II. Microscopic dynamics and a nonequilibrium entropy principle. / Bagarello, Fabio; Bagarello, Fabio; Sewell, Geoffrey L.

In: Journal of Mathematical Physics, Vol. 39, 1998, pag. 2730-2747.

Risultato della ricerca: Article

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