3 papers
cond-mat.stat-mech2000
Introduction to the Bethe Ansatz III
Michael Karbach, Kun Hu, Gerhard Muller
Having introduced the magnon in part I and the spinon in part II as the relevant quasi-particles for the interpretation of the spectrum of low-lying excitations in the one-dimensio…
cond-mat.str-el2000
Computational probes of collective excitations in low-dimensional magnetism
Gerhard Muller, Michael Karbach
The investigation of the dynamics of quantum many-body systems is a concerted effort involving computational studies of mathematical models and experimental studies of material sam…
cond-mat.stat-mech1998
Introduction to the Bethe ansatz I
Michael Karbach, Gerhard Muller
The Bethe ansatz for the one-dimensional s=1/2 Heisenberg ferromagnet is introduced at an elementary level. The presentation follows Bethe's original work very closely. A detailed…