Lattice QCD at finite isospin density and/or temperature

Abstract

We simulate two-flavour lattice QCD with at a finite chemical potential ${\mu }_I$ for isospin, and finite temperature. At small ${\mu }_I$, we determine the position of the crossover from hadronic matter to a quark-gluon plasma as a function of ${\mu }_I$. At larger ${\mu }_I$ we observe the phase transition from the superfluid pion-condensed phase to a quark-gluon plasma, noting its change from second order to first order as ${\mu }_I$ is increased. We also simulate two-flavour lattice QCD at zero quark mass, using an action which includes an additional 4-fermion interaction, at temperatures close to the chiral transition on $N_t=8$ lattices.

3 pages LaTex, 3 postscript figures. Parallel talk at Lattice2003(nonzero)

References in corpus (3)

• Finite density QCD via imaginary chemical potential
• The Equation of State for Two Flavor QCD at Non-zero Chemical Potential
• The QCD equation of state at nonzero densities: lattice result

Cited by in corpus (4)

• The finite temperature transition for 2-flavour lattice QCD at finite isospin density
• The QCD phase diagram at nonzero baryon, isospin and strangeness chemical potentials: Results from a hadron resonance gas model
• A large Nc perspective on the QCD phase diagram
• Pion superfluid phase transition at finite isospin chemical potential