Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2011-05-25
SIGMA 7:056,2011
Physics
Condensed Matter
Statistical Mechanics
Scientific paper
10.3842/SIGMA.2011.056
We show some symmetry relations among the correlation functions of the integrable higher-spin XXX and XXZ spin chains, where we explicitly evaluate the multiple integrals representing the one-point functions in the spin-1 case. We review the multiple-integral representations of correlation functions for the integrable higher-spin XXZ chains derived in a region of the massless regime including the anti-ferromagnetic point. Here we make use of the gauge transformations between the symmetric and asymmetric R-matrices, which correspond to the principal and homogeneous gradings, respectively, and we send the inhomogeneous parameters to the set of complete 2s-strings. We also give a numerical support for the analytical expression of the one-point functions in the spin-1 case.
Deguchi Tetsuo
Sato Jun
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