ar X iv : h ep - t h / 03 07 13 3 v 1 1 5 Ju l 2 00 3 Non - equivalence between Heisenberg XXZ spin chain and Thirring model
نویسندگان
چکیده
The Bethe ansatz equations for the spin 1/2 Heisenberg XXZ spin chain are numerically solved, and the energy eigenvalues are determined for the anti-ferromagnetic case. We examine the relation between the XXZ spin chain and the Thirring model, and show that the spectrum of the XXZ spin chain is different from that of the regularized Thirring model.
منابع مشابه
ar X iv : s ol v - in t / 9 50 10 03 v 1 1 1 Ja n 19 95 DUAL FIELD APPROACH TO CORRELATION FUNCTIONS IN THE HEISENBERG XXZ SPIN CHAIN FABIAN
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