Low-temperature effective potential of the Ising model

TL;DR

This paper investigates the low-temperature effective potential of the Ising model by calculating renormalized coupling constants near the coexistence curve, using a constrained epsilon-expansion based on precise 2D Ising data.

Contribution

It provides new estimates of three- and four-point coupling constants for the 2D Ising model's effective potential at low temperatures.

Findings

Calculated renormalized coupling constants near the coexistence curve.

Used constrained epsilon-expansion with accurate 2D Ising estimates.

Enhanced understanding of the effective potential's behavior at low temperatures.

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 $\epsilon$-expansion that uses accurate estimates for the two-dimensional Ising model.