Bulk viscosity in the nonlinear and anharmonic regimes of strange quark matter

Igor Shovkovy, Xinyang Wang

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

The bulk viscosity of cold, dense three-flavor quark matter is studied as a function of temperature and the amplitude of density oscillations. The study is extended to the case of two different types of anharmonic oscillations of density. We point out several qualitative effects due to the anharmonicity, although quantitatively they appear to be relatively small. We found that, in most regions of the parameter space, except for very large amplitudes of density oscillations (i.e. 10% and above), nonlinear effects and anharmonicity have a small effect on the interplay of the nonleptonic and semileptonic processes in the bulk viscosity.

Original languageEnglish (US)
Article number045018
JournalNew Journal of Physics
Volume13
DOIs
StatePublished - Apr 1 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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