Open AccessPhase transition of lattice quantum chromodynamics with 2+1 flavor fermions at finite temperature and finite density
Author(s) -
Hesheng Chen
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.6791
Subject(s) - physics , fermion , quantum chromodynamics , condensed matter physics , phase diagram , quantum phase transition , phase transition , crossover , finite volume method , scaling , quantum monte carlo , lattice (music) , quantum critical point , monte carlo method , quantum electrodynamics , quantum mechanics , phase (matter) , statistics , mathematics , artificial intelligence , computer science , acoustics , geometry
Quantum chromodynamics with 2+1 flavor fermions at finite temperature and finite density was studied. Polyakov loop and chiral condensate were used to determine the dependence of the phase transition on the chemical potential and hop parameter. Finite volume scaling and Monte Carlo simulation were adopted to determine the type of phase transition. It was found that the transition between confined phase and deconfined phase varied from crossover to a first order one while the hop parameter κ1 increased from a small value to nearly the chiral limit. The phase diagram was also presented.