On the algebraic Bethe Ansatz approach to the correlation functions of the XXZ spin-1/2 Heisenberg chain

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We present a review of the method we have elaborated to compute the correlation functions of the XXZ spin-1/2 Heisenberg chain. This method is based on the resolution of the quantum inverse scattering problem in the algebraic Bethe Ansatz framework, and leads to a multiple integral representation of the dynamical correlation functions. We describe in particular some recent advances concerning the two-point functions: in the finite chain, they can be expressed in terms of a single multiple integral. Such a formula provides a direct analytic connection between the previously obtained multiple integral representations and the form factor expansions for the correlation functions.
35 pages, review article

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High Energy Physics - Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/53117

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-th/0505006
 http://arxiv.org/abs/hep-th/0505006

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arXiv