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TT: Fachverband Tiefe Temperaturen

TT 40: Poster Session Correlated Electrons

TT 40.36: Poster

Wednesday, March 13, 2013, 15:00–19:00, Poster D

Factorisation of correlation functions of the integrable spin-1 Heisenberg chain at finite temperature — •Dominic Nawrath and Andreas Klümper — Bergische Universität Wuppertal, Theoretische Physik, Gauss-Strasse 20, 42119 Wuppertal

Based on the reduced quantum Knizhnik-Zamolodchikov equation we derive discrete functional equations for the two site density matrix of the isotropic spin-1 Heisenberg chain [1, 2, 3]. This set of equations can be solved by a transcendental two point function that satisfy a three point equation. Furthermore by means of the fusion procedure [6] it seems that the factorization of correlation functions in the spin-1/2 case holds for correlation functions of the spin-1 model [4, 5].
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