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
by Mario Salerno
Dipartimento di Fisica Teorica
Università di Salerno
Thursday December 17, 1998, 11.00-12.00 h
at MIDIT, IMM, Building 305, room 027, DTU
Abstract: Using the results of the previous lecture we study the physical properties of the Heisenberg ferromagnetic chain. We explicitly show that the excitation spectrum consists of free massive particles (magnons) and of their bound states.