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Wave functions for Hamiltonian Lattice Gauge Theory

Matteo Beccaria
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Abstract

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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Matteo Beccaria. 2000-03-21. Wave functions for Hamiltonian Lattice Gauge Theory. https://doi.org/10.1103/physrevd.62.034510

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