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

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

8 Aug 2022, 15:20

20m

CP1-HSZ/0.011 (CP1-HSZ) - HS1 (CP1-HSZ)

Oral Presentation QCD at Non-zero Density 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.

Presentation materials

Lattice22_MN.pdf