We analyze those integrable statistical systems which originate from some relevant
perturbations of the minimal models of conformal field theories. When only massive …

The two-dimensional Ising model is the simplest model of statistical mechanics exhibiting a
second-order phase transition. While in absence of magnetic field it is known to be solvable …

We use the thermodynamic Bethe ansatz to find the finite-size corrections to the ground-
state energy in an arbitrary (1+ 1)-dimensional purely elastic scattering theory. The leading …

We discuss the thermodynamic Bethe ansatz, and explain how it allows one to reduce the
infinite-volume thermodynamics of a (1+ 1)-dimensional purely elastic scattering theory to …

A new approach to the construction of interacting quantum field theories on two-dimensional
Minkowski space is discussed. In this program, models are obtained from a prescribed …

We present a family of factorizable S-matrix theories in 1+ 1 dimensions with an arbitrary
number N of particles of distinct masses, and find the conservation laws of these theories. An …

If a stable particle in a quantum field theory (QFT) is enclosed in a box, its mass changes
from its infinite-volume value due to the finite-size depedence of its self-energy (because …

We address the general question of how to reconstruct the field content of a quantum field
theory from a given scattering theory in the context of the form factor program. For the SU (3) …

The magnetic deformation of the Ising model, and the thermal deformations of both the
tricritical Ising model and the tricritical Potts model, are governed by an algebraic structure …

We derive the thermodynamic Bethe ansatz equation for the situation in which the statistical
interaction of a multi-particle system is governed by Haldane statistics. We formulate a …