Wave functions for Hamiltonian Lattice Gauge Theory

Details Wave functions for Hamiltonian Lattice Gauge Theory Wave functions for Hamiltonian Lattice Gauge Theory

2000-03-21

arxiv.org/abs/hep-lat/0003016v1

Phys.Rev. D62 (2000) 034510

Physics

High Energy Physics

High Energy Physics - Lattice

14 pages, 8 Encapsulated PostScript figures

Scientific paper

10.1103/PhysRevD.62.034510

We study four dimensional SU(2) lattice gauge theory in the Hamiltonian formalism by Green's Function Monte Carlo methods. A trial ground state wave function is introduced to improve the configuration sampling and we discuss the interplay between its complexity and the simulation systematic errors. As a case study, we compare the leading strong coupling approximation and an improved 4 parameters wave function with 1X1 and 1X2 plaquette terms. Our numerical results favors the second option.

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