A. Agodi et al., THE (LAMBDA-PHI(4))(4) THEORY ON THE LATTICE - EFFECTIVE POTENTIAL AND TRIVIALITY, Nuclear physics. B, Proceedings supplement, 63, 1998, pp. 637-639
We compute numerically the effective potential for the (lambda Phi(4))
(4) theory on the lattice. Three different methods were used to determ
ine the critical bare mass for the chosen bare coupling value. Two dif
ferent methods for obtaining the effective potential were used as a co
ntrol on the results. We compare our numerical result; with three theo
retical descriptions. Our lattice data are in quite good agreement wit
h the ''Triviality and Spontaneous Symmetry Breaking'' picture.