Single-bubble sonoluminescence as Dicke superradiance at finite temperature

M. Aparicio Alcalde, H. Quevedo and N.F. Svaiter

Physica A: Statistical Mechanics and its Applications, 2014, vol. 416, issue C, 142-148

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 β−1. 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.

Keywords: Single-bubble sonoluminiscence; Dicke superradiance; Thermodynamic limit; Phase transition (search for similar items in EconPapers)
Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:416:y:2014:i:c:p:142-148

DOI: 10.1016/j.physa.2014.08.044

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