Grassmann integrals by machine

Details Grassmann integrals by machine Grassmann integrals by machine

1998-09-04

arxiv.org/abs/hep-lat/9809024v2

Nucl.Phys.Proc.Suppl. 73 (1999) 819-821

Physics

High Energy Physics

High Energy Physics - Lattice

LATTICE98(algorithms), 3 pages, 3 figures, uses espcrc2, revision darkens figure points, adding one from the RIKEN/BNL Superco

Scientific paper

10.1016/S0920-5632(99)85213-X

I present a numerical algorithm for direct evaluation of multiple Grassmann
integrals. The approach is exact and suffers no Fermion sign problems. Memory
requirements grow exponentially with the interaction range and the transverse
size of the system. Low dimensional systems of order a thousand Grassmann
variables can be evaluated on a workstation.

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