Introduction of the chemical potential in the overlap formalism

Abstract

We investigate the possibility of coupling a chemical potential only to the physical chiral fermions on the lattice starting from the many body state description of overlap fermions. After developing the formalism for a chiral gauge theory, we focus our attention on the case of free fermions coupled to a vector like chemical potential and discuss the issue of zero temperature divergences.

17 pages, 3 figures, minor changes to v1, version to appear in JHEP

References in corpus (2)

• The QCD phase diagram at nonzero quark density
• Overlap Dirac operator at nonzero chemical potential and random matrix theory

Cited by in corpus (8)

• Non-equilibrium study of the Chiral Magnetic Effect from real-time simulations with dynamical fermions
• Singular values of the Dirac operator in dense QCD-like theories
• QCD thermodynamics with dynamical overlap fermions
• Divergences in the quark number susceptibility : The origin and a cure
• A faster method of computation of lattice quark number susceptibilities
• Exact chiral invariance at finite density on the lattice
• QCD thermodynamics on the lattice
• Exact Chiral Invariance at Finite Density on Lattice