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arxiv: 1009.2197 · v2 · pith:GOHVGVBDnew · submitted 2010-09-11 · ✦ hep-lat

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

Andrei Alexandru , Urs Wenger This is my paper
classification ✦ hep-lat
keywords chemicalfermionmatrixpotentialreducedwilsoncanonicalfermions
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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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