Universal Ratios in the 2-D Tricritical Ising Model

TL;DR

This paper investigates universal amplitude ratios in the 2D Tricritical Ising Model, combining theoretical and numerical methods to compute quantities with potential experimental relevance.

Contribution

It introduces a novel approach to calculating universal ratios in the 2D Tricritical Ising Model using Perturbed CFT, integrable QFT, and numerical techniques.

Findings

Computed universal ratios with theoretical and numerical methods

Identified ratios with potential experimental relevance

Enhanced understanding of tricritical universality class

Abstract

We consider the universality class of the two-dimensional Tricritical Ising Model. The scaling form of the free-energy naturally leads to the definition of universal ratios of critical amplitudes which may have experimental relevance. We compute these universal ratios by a combined use of results coming from Perturbed Conformal Field Theory, Integrable Quantum Field Theory and numerical methods.