The Lattice NJL Model at Non-zero Baryon and Isospin Densities
arXiv:hep-lat/0407034 · doi:10.1016/j.nuclphysbps.2004.11.135
Abstract
We present initial results of a numerical investigation of the chiral symmetry restoring transition in the (3+1)-dimensional Nambu -- Jona-Lasinio model with both non-zero baryon chemical potential (mu_B) and isospin chemical potential (mu_I). With non-zero isospin chemical potential, the model suffers from a sign problem. We proceed in two ways: (i) We perform ``partially quenched'' simulations in which mu_I is made non-zero only during the measurement of chiral observables; (ii) We perform full simulations with imaginary isospin chemical potential with the aim to analytically continue results to real mu_I.
arXiv comment3 pages, 3 figures, poster presented at LATTICE 2004, Fermi National Accelerator Laboratory, June 21-26, 2004
References in corpus (11)
- The QCD phase diagram for small densities from imaginary chemical potential
- Lattice determination of the critical point of QCD at finite T and μ
- The QCD thermal phase transition in the presence of a small chemical potential
- Finite density QCD via imaginary chemical potential
- A new method to study lattice QCD at finite temperature and chemical potential
- The Quark-Gluon Plasma in Equilibrium
- Magnetic fields within color superconducting neutron star cores
- Numerical Study of Dense Adjoint Matter in Two Color QCD
- Isospin Chemical Potential and the QCD Phase Diagram at Nonzero Temperature and Baryon Chemical Potential
- A calculation of the QCD phase diagram at finite temperature, and baryon and isospin chemical potentials
- Numerical Portrait of a Relativistic BCS Gapped Superfluid