Analytic Continuation of the Quark Density in Lattice QC$_2$D with respect to Quark Chemical Potential
R. Rogalev*,
A. Begun,
V. Bornyakov,
N. Gerasimeniuk,
V.A. Goy,
A. Nakamura and
V. Vovchenko*: corresponding author
Pre-published on:
May 16, 2022
Published on:
July 08, 2022
Abstract
Lattice QCD with $N_c=2$ and $N_f=2$ is studied at imaginary
and real quark chemical potential $\mu_q$ at temperatures above $T_c$. We employ various methods of analytic continuation of the net baryon number $B$ from imaginary to real $\mu_q$. It is demonstrated that below the Roberge-Weiss temperature the cluster expansion model provides an accurate analytic continuation of $B$.
DOI: https://doi.org/10.22323/1.396.0493
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