Exact chiral invariance at finite density on the lattice

Abstract

We propose a lattice action for the overlap Dirac matrix with nonzero chemical potential which is shown to preserve the chiral invariance on the lattice exactly. We further demonstrate it to arise from the Domain wall by letting the chemical potential count only the physically relevant wall modes.

4 pages, RevTeX

References in corpus (10)

• QCD at finite chemical potential with six time slices
• The chiral critical point of Nf=3 QCD at finite density to the order (mu/T)^4
• STAR experiment results from the beam energy scan program at RHIC
• Overlap Dirac operator at nonzero chemical potential and random matrix theory
• Breakdown of staggered fermions at nonzero chemical potential
• Net-baryon number fluctuations in (2+1)-flavor QCD
• Domain-wall and overlap fermions at nonzero quark chemical potential
• Thermodynamics of the ideal overlap quarks on the lattice
• A faster method of computation of lattice quark number susceptibilities
• Introduction of the chemical potential in the overlap formalism

Cited by in corpus (7)

• Non-equilibrium study of the Chiral Magnetic Effect from real-time simulations with dynamical fermions
• The QCD Critical Point : marching towards continuum
• QCD Critical Point: The Race is On
• Divergences in the quark number susceptibility : The origin and a cure
• QCD thermodynamics on the lattice
• The magnetized (2+1)-dimensional Gross-Neveu model at finite density
• Exact Chiral Invariance at Finite Density on Lattice