Meron-cluster algorithms and chiral symmetry breaking in a (2+1)-d staggered fermion model

Details Meron-cluster algorithms and chiral symmetry breaking in a (2+1)-d staggered fermion model Meron-cluster algorithms and chiral symmetry breaking in a (2+1)-d staggered fermion model

2000-03-27

arxiv.org/abs/hep-lat/0003022v1

Nucl.Phys. B583 (2000) 331-346

Physics

High Energy Physics

High Energy Physics - Lattice

18 pages, LaTex

Scientific paper

10.1016/S0550-3213(00)00299-6

The recently developed Meron-Cluster algorithm completely solves the exponentially difficult sign problem for a number of models previously inaccessible to numerical simulation. We use this algorithm in a high-precision study of a model of N=1 flavor of staggered fermions in (2+1)-dimensions with a four-fermion interaction. This model cannot be explored using standard algorithms. We find that the Z(2) chiral symmetry of this model is spontaneously broken at low temperatures and that the finite-temperature chiral phase transition is in the universality class of the 2-d Ising model, as expected.

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