Séminaire de Physique Théorique
Study of shear viscosity of SU (2)-gluodynamics within lattice simulationV. V. Braguta (IHEP, Serpukhov, Russie)
Thursday 10 September 2015 14:00 - Tours - Salle 1180 (Bât E2)
Résumé :
After an overview of viscous properties of strongly interacting matter, we report on the study of two-point correlation function of the energy-momentum tensor for SU(2)-gluodynamics within a lattice simulation of QCD. Using multilevel algorithm we carried out the measurement of the correlation function at the temperature T/T_c = 1.2. It is shown that lattice data can be described by spectral functions which interpolate between hydrodynamics at low frequencies and asymptotic freedom at high frequencies. The results of the study of spectral functions allowed us to estimate shear viscosity of SU(2) gluodynamics.
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