Low-temperature effective potential of the Ising model
arXiv:cond-mat/9805317 · doi:10.1016/S0550-3213(98)00779-2
Abstract
We study the low-temperature effective potential of the Ising model. We evaluate the three-point and four-point zero-momentum renormalized coupling constants that parametrize the expansion of the effective potential near the coexistence curve. These results are obtained by a constrained analysis of the $ε$-expansion that uses accurate estimates for the two-dimensional Ising model.
16 pages, RevTex, few minor changes