Speaker
Manuel Naviglio
(Istituto Nazionale di Fisica Nucleare)
Description
In this talk we present our study of the electromagnetic conductivity in dense quark-gluon plasma obtained within lattice simulations with $N_f$ = 2 + 1 dynamical quarks. We employ stout improved rooted staggered quarks at the physical point and the tree-level Symanzik improved gauge action. The simulations are performed at imaginary chemical potential. To reconstruct electromagnetic conductivity from current-current correlators, we employ the Tikhonov regularisation method as well as the modified Backus-Gilbert method, computing the convolution of the spectral density with the target function. Our study indicates that electromagnetic conductivity of quark-gluon plasma rapidly grows with the real baryon density.
Authors
Francesco Sanfilippo
(INFN - Sezione Roma III)
Lorenzo Maio
(Istituto Nazionale di Fisica Nucleare)
Manuel Naviglio
(Istituto Nazionale di Fisica Nucleare)
Massimo D'Elia
(Istituto Nazionale di Fisica Nucleare)
Nikita Astrakhantsev
Victor Braguta
(ITEP)
