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Abstract: We describe a method to derive, from first principles, the long-distanceasymptotic behavior of correlation functions of integrable models in theframework of the algebraic Bethe ansatz.
We apply this approach to thelongitudinal spin- spin correlation function of the XXZ Heisenberg spin-1-2chain with magnetic field in the disordered regime as well as to thedensity-density correlation func- tion of the interacting one-dimensional Bosegas.
At leading order, the results confirm the Luttinger liquid and conformalfield theory predictions.



Autor: N.
Kitanine LPTM, K.
K.
Kozlowski Phys-ENS, J.
M.
Maillet Phys-ENS, N.
A.
Slavnov SMI, V.
Terras Phys-ENS, LPTA


Fuente: https://arxiv.org/



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