# The 39th International Symposium on Lattice Field Theory (Lattice 2022)

Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

## Electromagnetic conductivity of quark-gluon plasma at finite baryon chemical potential

Aug 8, 2022, 3:20 PM
20m
CP1-HSZ/Ground-0.011 - HS1 (CP1-HSZ)

### CP1-HSZ/Ground-0.011 - HS1

#### CP1-HSZ

450
Oral Presentation QCD at Non-zero Density

### Speaker

Manuel Naviglio (Pisa U., INFN)

### 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.

### Primary authors

Francesco Sanfilippo Lorenzo Maio (University of Pisa and INFN section of Pisa) Manuel Naviglio (Pisa U., INFN) Nikita Astrakhantsev Massimo D'Elia (Pisa U. and INFN Pisa) Victor Braguta (JINR, BLTP)