QCD at non-zero density and canonical partition functions with Wilson fermions

Details QCD at non-zero density and canonical partition functions with Wilson fermions QCD at non-zero density and canonical partition functions with Wilson fermions

2010-09-11

arxiv.org/abs/1009.2197v2

Phys.Rev.D83:034502,2011

Physics

High Energy Physics

High Energy Physics - Lattice

22 pages, 11 figures, 1 table; references added, figure size reduced

Scientific paper

10.1103/PhysRevD.83.034502

We present a reduction method for Wilson Dirac fermions with non-zero chemical potential which generates a dimensionally reduced fermion matrix. The size of the reduced fermion matrix is independent of the temporal lattice extent and the dependence on the chemical potential is factored out. As a consequence the reduced matrix allows a simple evaluation of the Wilson fermion determinant for any value of the chemical potential and hence the exact projection to the canonical partition functions.

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