Temperature dependence of shear viscosity of SU (3)-gluodynamics within lattice simulation

This report is devoted to the study of temperature dependence of shear viscosity in SU(3)-gluodynamics. To calculate shear viscosity we measured the correlation function of the energy-momentum tensor T12T12 for a set of temperatures in the region T/Tc ϵ (0.9, 1.5). The measurements were carried out...

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Bibliographic Details
Published inEPJ Web of Conferences Vol. 164; p. 7046
Main Authors Astrakhantsev, N.Yu, Braguta, V.V., Kotov, A.Yu
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2017
Subjects
Computer simulation
Correlation analysis
Mathematical analysis
Shear viscosity
Temperature
Temperature dependence
Viscosity
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Summary:This report is devoted to the study of temperature dependence of shear viscosity in SU(3)-gluodynamics. To calculate shear viscosity we measured the correlation function of the energy-momentum tensor T12T12 for a set of temperatures in the region T/Tc ϵ (0.9, 1.5). The measurements were carried out using multilevel algorithm which considerably improves the accuracy of the data. For determination of the shear viscosity two methods were used: physically motivated ansatz and non-parametrical Backus-Gilbert method. Both methods give consistent results. The calculation allows to determine temperature dependence of the ratio of shear viscosity to the entropy density η/s.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201716407046