TY - JOUR
T1 - Dynamical versus equilibrium properties of the QCD phase transition
T2 - A holographic perspective
AU - Rougemont, Romulo
AU - Critelli, Renato
AU - Noronha-Hostler, Jacquelyn
AU - Noronha, Jorge
AU - Ratti, Claudia
N1 - Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/7/1
Y1 - 2017/7/1
N2 - We employ an Einstein-Maxwell-Dilaton (EMD) holographic model, which is known to be in good agreement with lattice results for the QCD equation of state with (2+1) flavors and physical quark masses, to investigate the temperature and baryon chemical potential dependence of the susceptibilities, conductivities, and diffusion coefficients associated with baryon, electric, and strangeness conserved charges. We also determine how the bulk and shear viscosities of the plasma vary in the plane of temperature and baryon chemical potential. The diffusion of conserved charges and the hydrodynamic viscosities in a baryon rich quark-gluon plasma are found to be suppressed with respect to the zero net baryon case. The transition temperatures associated with equilibrium and non-equilibrium quantities are determined as a function of the baryon chemical potential for the first time. Because of the crossover nature of the QCD phase transition even at moderately large values of the chemical potential, we find that the transition temperatures associated with different quantities are spread in the interval between 130-200 MeV and they all decrease with increasing baryon chemical potential.
AB - We employ an Einstein-Maxwell-Dilaton (EMD) holographic model, which is known to be in good agreement with lattice results for the QCD equation of state with (2+1) flavors and physical quark masses, to investigate the temperature and baryon chemical potential dependence of the susceptibilities, conductivities, and diffusion coefficients associated with baryon, electric, and strangeness conserved charges. We also determine how the bulk and shear viscosities of the plasma vary in the plane of temperature and baryon chemical potential. The diffusion of conserved charges and the hydrodynamic viscosities in a baryon rich quark-gluon plasma are found to be suppressed with respect to the zero net baryon case. The transition temperatures associated with equilibrium and non-equilibrium quantities are determined as a function of the baryon chemical potential for the first time. Because of the crossover nature of the QCD phase transition even at moderately large values of the chemical potential, we find that the transition temperatures associated with different quantities are spread in the interval between 130-200 MeV and they all decrease with increasing baryon chemical potential.
UR - http://www.scopus.com/inward/record.url?scp=85027055528&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85027055528&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.96.014032
DO - 10.1103/PhysRevD.96.014032
M3 - Article
AN - SCOPUS:85027055528
SN - 2470-0010
VL - 96
JO - Physical Review D
JF - Physical Review D
IS - 1
M1 - 014032
ER -