We simulate two-flavour lattice QCD with at a finite chemical potential ~1 for isospin, and finite temperature. At small ,u~, we determine the position of the crossover from hadronic matter to a quark-gluon plasma as a function of ~1. At larger ~1 we observe the phase transition from the superfluid
Simulation of Wilson fermion at finite isospin density
โ Scribed by A. Nakamura; T. Takaishi
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 257 KB
- Volume
- 129-130
- Category
- Article
- ISSN
- 0920-5632
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โฆ Synopsis
For QCD with Wilson fermions at isospin chemical potential we study the finite phase transition on an 83 x 4 lattice at IE = 0.15. We use two gauge actions: Wilson action and DBW2 action. Both actions give the same results. The phase diagram is qualitatively similar to the one obtained for QCD at small baryon chemical potential. We also calculate the number density for various isospin chemical potentials.
๐ SIMILAR VOLUMES
A formalism to study light fermions at non-zero chemical potential in the instanton medium is presented. It is then applied to investigate chiral symmetry restoration and diquark condensation at finite baryon density.
We discuss the implementation of a Sheikholeslami-Wohlert term for simulations of lattice QCD with dynamical Wilson fermions as required by Symanzik's improvement program. We show that for the Hybrid Monte Carlo or Kramers equation algorithm standard even-odd preconditioning can be maintained. We de