Shear viscosity in SU(2) lattice gluodynamics

1st International Kaidalov Workshop on the Phenomenology of High Energy Particle Physics

Braguta, V.V.^1,2,3 ; Kotov, A.Yu.^1

Alikhanov Institute for Theoretical and Experimental Physics, ul. Bolshaya Cheremushkinskaya 25, Moscow

117218, Russia^1

Institute for High Energy Physics, Protvino, Moscow region

142281, Russia^2

Moscow Institute of Physics and Technology (State University), Institutskii per. 9, Dolgoprudnyi, Moscow region

141700, Russia^3

关键词: Correlation function;    Energy-momentum tensor;    Euclidean;    Gluon plasmas;    Kubo formula;    Lattice simulation;    Linear methods;    Spectral function;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/607/1/012019/pdf
DOI  :  10.1088/1742-6596/607/1/012019

来源: IOP

【 摘 要 】

The calculation of the gluon plasma viscosity has been performed by lattice simulations in the SU(2) gluodynamics at T/Tc= 1.2 on the supercomputers. The evaluation is based on the Kubo formula that relates viscosity to the spectral function of the correlation functions of the energy-momentum tensor. For the extraction of the spectral function from the Euclidean correlator the linear method is applied.