QCD phase diagram at imaginary baryon and isospin chemical potentials
High Energy Physics - Phenomenology
2015-03-13 v3 High Energy Physics - Lattice
High Energy Physics - Theory
Nuclear Theory
Abstract
We explore the phase diagram of two-flavor QCD at imaginary values of baryon and isospin chemical potentials analyzing the thermodynamic potential of QCD analytically and that of the Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model numerically. QCD has no pion condensation at imaginary baryon and isospin chemical potentials, and therefore has discrete symmetries that are not present at real baryon and isospin chemical potentials. The PNJL model possesses all the discrete symmetries. The PNJL model can reproduce qualitatively lattice QCD data presented very lately.
Keywords
Cite
@article{arxiv.0908.3088,
title = {QCD phase diagram at imaginary baryon and isospin chemical potentials},
author = {Yuji Sakai and Hiroaki Kouno and Masanobu Yahiro},
journal= {arXiv preprint arXiv:0908.3088},
year = {2015}
}
Comments
11 pages, 20 figures