Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7379726 | Physica A: Statistical Mechanics and its Applications | 2014 | 7 Pages |
Abstract
Sonoluminescence is a process in which a strong sound field is used to produce light in liquids. We explain sonoluminescence as a phase transition from ordinary fluorescence to a superradiant phase. We consider a spin-boson model composed of a single bosonic mode and an ensemble of N identical two-level atoms. We assume that the whole system is in thermal equilibrium with a reservoir at temperature βâ1. We show that, in a ultrastrong-coupling regime, between the two-level atoms and the electromagnetic field it is possible to have a cooperative interaction of the molecules of the gas in the interior of the bubble with the field, generating sonoluminescence.
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Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
M. Aparicio Alcalde, H. Quevedo, N.F. Svaiter,