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Single-bubble sonoluminescence as Dicke superradiance at finite temperature

Author

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

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.

Suggested Citation

  • Aparicio Alcalde, M. & Quevedo, H. & Svaiter, N.F., 2014. "Single-bubble sonoluminescence as Dicke superradiance at finite temperature," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 416(C), pages 142-148.
    • Handle: RePEc:eee:phsmap:v:416:y:2014:i:c:p:142-148
    DOI: 10.1016/j.physa.2014.08.044
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