Physical Review D.
We present an analytic d in 3 + 1 dimensions for Hamiltonian lattice gauge theory. This method is based on Batrouni's mean-plaquette method and space integration. The Abelianized Bianchi identities are used and a detailed study of the number of identities that are needed and the validity of this approximation is given. The we use is the product of single-plaquette wave functions. The guage group we consider here is SU(2), but the method is valid for any gauge theory. We apply this method to calculate the 0++ glueball mass, and, in addition, the results of the string tension (scaling is observed) and its roughening transition are presented. © 1990 The American Physical Society.
Huang, M. C., & Katoot, M. W. (1990). Analytic variational method for hamiltonian lattice gauge theory in 3 + 1 dimensions. Physical Review D, 41(6), 1965-1982