1999
DOI: 10.1016/s0550-3213(99)00295-3
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Form factors of the XXZ Heisenberg finite chain

Abstract: Form factors for local spin operators of the XXZ Heisenberg spin-1 2 finite chain are computed. Representation theory of Drinfel'd twists for the quantum affine algebra U q (ŝl 2 ) in finite dimensional modules is used to calculate scalar products of Bethe states (leading to Gaudin formula) and to solve the quantum inverse problem for local spin operators in the finite chain. Hence, we obtain the representation of the n-spin correlation functions in terms of expectation values (in ferromagnetic reference state… Show more

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Cited by 447 publications
(938 citation statements)
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References 41 publications
(85 reference statements)
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“…A proof of these results together with their extension to non-zero magnetic field has been obtained in 1999 [14,15] for both regimes using algebraic Bethe ansatz [16,17] and the actual resolution of the so-called quantum inverse scattering problem [14,18].…”
Section: Introductionmentioning
confidence: 92%
See 2 more Smart Citations
“…A proof of these results together with their extension to non-zero magnetic field has been obtained in 1999 [14,15] for both regimes using algebraic Bethe ansatz [16,17] and the actual resolution of the so-called quantum inverse scattering problem [14,18].…”
Section: Introductionmentioning
confidence: 92%
“…To compute these elementary blocks, the following successive problems have to be addressed [14,15]: (i) determination of the ground state ψ g |, (ii) evaluation of the action of the product of the local operators E j , j j on this ground state, and (iii) computation of the scalar product of the resulting state with |ψ g .…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…(5) for significantly large chains. Unfortunately, unlike the Heisenberg model, there are so far no determinant formulas 45 or vertex operator approach 46 to compute form factors for the Hubbard model. Nonetheless, we can use the BA equations to compute the exact support of the DSF.…”
Section: Elementary Excitations In the Bethe Ansatz Solutionmentioning
confidence: 99%
“…In [3], the Drinfeld twists associated with any finite-dimensional irreducible representations of the Yangian Y [gl (2)] were investigated. In [4], the form factors for local spin operators of the spin-1/2 XXZ model were computed and in [5], the spontaneous magnetization of the XXZ chain on the finite lattice was represented. In [2], Albert et al constructed the F -matrix of the gl(m) rational Heisenberg model and obtained a polarization free representation of the creation operators.…”
Section: Introductionmentioning
confidence: 99%