Adaptive Optimization of Wave Functions for Fermion Lattice Models

Details Adaptive Optimization of Wave Functions for Fermion Lattice Models Adaptive Optimization of Wave Functions for Fermion Lattice Models

2001-05-23

arxiv.org/abs/hep-lat/0105024v1

Phys.Rev. D64 (2001) 077502

Physics

High Energy Physics

High Energy Physics - Lattice

4 pages, 6 figures (Encapsulated PostScript)

Scientific paper

10.1103/PhysRevD.64.077502

We present a simulation algorithm for Hamiltonian fermion lattice models. A guiding trial wave function is adaptively optimized during Monte Carlo evolution. We apply the method to the two dimensional Gross-Neveu model and analyze systematc errors in the study of ground state properties. We show that accurate measurements can be achieved by a proper extrapolation in the algorithm free parameters.

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