Introduction of the chemical potential in the overlap formalism

Details Introduction of the chemical potential in the overlap formalism Introduction of the chemical potential in the overlap formalism

2011-08-12

arxiv.org/abs/1108.2667v2

Physics

High Energy Physics

High Energy Physics - Lattice

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

Scientific paper

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.

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