Graduate School in Nonlinear Science

Sponsored by the Danish Research Academy

MIDIT                               OFD                           CATS
Modelling, Nonlinear Dynamics       Optics and Fluid Dynamics     Chaos and Turbulence Studies
and Irreversible Thermodynamics     Risø National Laboratory      Niels Bohr Institute and 
Technical University of Denmark     Building 128                  Department of Chemistry
Building 321                        P.O. Box 49                   University of Copenhagen 
DK-2800 Lyngby                      DK-4000 Roskilde              DK-2100 Copenhagen Ø
Denmark                             Denmark                       Denmark


Lecture 1

by Mario Salerno
Dipartimento di Fisica Teorica
Università di Salerno

MIDIT-seminar 434

Tuesday December 15, 1998, 15.00-17.00 h
at MIDIT, IMM, Building 305, room 027, DTU

Abstract: In this lecture we give a general introduction to the technique of the coordinate Bethe Ansatz for solving quantum 1D integrable models. As working example we use the Heisenberg quantum spin chain. The Bethe equations and the spectrum of the commuting set of conserved quantities will be derived in details for this model. The QISM formulation of the Bethe ansatz method will be briefly discussed.