Single-Bubble Sonoluminescence as Dicke Superradiance at Finite Temperature
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 identical two-level atoms. We assume that the whole system is in thermal equilibrium with a reservoir at temperature . 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
Cite
@article{arxiv.1408.3932,
title = {Single-Bubble Sonoluminescence as Dicke Superradiance at Finite Temperature},
author = {M. Aparicio Alcalde and Hernando Quevedo and Nami Fux Svaiter},
journal= {arXiv preprint arXiv:1408.3932},
year = {2015}
}
Comments
Final version accepted for publication in Physica A. arXiv admin note: text overlap with arXiv:1011.3075