Fermionic fields in the pseudoparticle approach

Details Fermionic fields in the pseudoparticle approach Fermionic fields in the pseudoparticle approach

2007-08-17

arxiv.org/abs/0708.2359v1

PoSLAT2007:339,2007

Physics

High Energy Physics

High Energy Physics - Lattice

Talk presented at Lattice 2007 (Vacuum Structure and Confinement), 7 pages, 3 figures

Scientific paper

The pseudoparticle approach is a numerical method to compute path integrals without discretizing spacetime. The basic idea is to consider only those field configurations, which can be represented as a linear superposition of a small number of localized building blocks (pseudoparticles), and to replace the functional integration by an integration over the pseudoparticle degrees of freedom. In previous papers we have successfully applied the pseudoparticle approach to SU(2) Yang-Mills theory. In this work we discuss the inclusion of fermionic fields in the pseudoparticle approach. To test our method, we compute the phase diagram of the 1+1-dimensional Gross-Neveu model in the large-N limit as well as the chiral condensate in the crystal phase.

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