Improving the sign problem in QCD at finite density

Details Improving the sign problem in QCD at finite density Improving the sign problem in QCD at finite density

1999-08-17

arxiv.org/abs/hep-lat/9908015v1

Nucl.Phys.Proc.Suppl. 83 (2000) 372-374

Physics

High Energy Physics

High Energy Physics - Lattice

LATTICE99 (Finite Temperature and Density II)

Scientific paper

If the fermion mass is large enough, the phase of the fermion determinant of
QCD at finite density is strongly correlated with the imaginary part of the
Polyakov loop. This fact can be exploited to reduce the fluctuations of the
phase significantly, making numerical simulations feasible in regions of
parameters where the naive brute force method does not work.

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