Phys. Rev. B 54, R12669 - R12672 (1996)Exact two-spinon dynamical correlation function of the one-dimensional Heisenberg model |
A. H. Bougourzi
Institute of Theoretical Physics, State University of New York at Stony Brook, Stony Brook, New York 11794
M. Couture
Neutron & Condensed Matter Sciences, Atomic Energy of Canada Limited Research, Chalk River Laboratories, Chalk River, Ontario, Canada KOJ 1J0
M. Kacir
Service de Physique Théorique, Centre d'Energie Atomique-Saclay, F-91191 Gif-sur-Yvette Cedex, France
Received 1 May 1996
We derive the exact contribution of two spinons to the dynamical correlation function of the spin-½ Heisenberg model. For this, we use the isotropic limits of the exact form factors that have been recently computed through the quantum affine symmetry of the anisotropic Heisenberg model XXZ.
©1996 The American Physical Society
URL: http://link.aps.org/abstract/PRB/v54/pR12669
DOI: 10.1103/PhysRevB.54.R12669
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