These notes are the write-up and extension of the lectures I gave over a few years for a class
on “Introduction to Bethe Ansatz” within the Ph. D. program in Statistical Physics at SISSA …

We describe the zero-temperature phase diagram of a model of bosons, occupying sites of a
linear chain, which obey a hard-exclusion constraint: any two nearest-neighbor sites may …

In this paper we continue and extend a systematic study of plateaux in magnetization curves
of antiferromagnetic Heisenberg spin-1/2 ladders. We first review a bosonic field-theoretical …

Magnetization processes of spin-1 2 Heisenberg ladders are studied using strong-coupling
expansions, numerical diagonalization of finite systems, and a bosonization approach. We …

Abstract Using the Bethe-Ansatz technique, we diagonalize exactly the one-dimensional tJ
Hamiltonian for the supersymmetric case t= J. In this limit it is identical with models …

We study a particular type of local quench in a generic quantum critical one-dimensional
system, using conformal field theory (CFT) techniques, and providing numerical checks of …

We describe a method to derive, from first principles, the long-distance asymptotic behavior
of correlation functions of integrable models in the framework of the algebraic Bethe ansatz …

The finite-size effects in the spectrum of a Hubbard chain are obtained for both the repulsive
and attractive cases. It is shown that the finite-size corrections-similar to the case of a …

The magnetization processes of bond-alternating spin chains are investigated using the
bosonization technique. The magnetization plateau recently observed in both numerical and …

This chapter describes a general scheme for constructing quantum integrable models within
the Quantum Inverse Scattering Method (QISM) framework. Much of what is described here …