On the spin-spin correlation functions of the XXZ spin-1/2 infinite chain
N. Kitanine, J.M. Maillet, N.A. Slavnov, V. Terras
TL;DR
This paper derives a new integral representation for the spin-spin correlation functions in the infinite XXZ spin-1/2 chain, linking it to the six-vertex model with domain wall boundaries.
Contribution
It introduces a novel multiple integral formula for correlation functions, connecting quantum spin chains with classical vertex model partition functions.
Findings
New integral representation for correlation functions
Connection established between XXZ chain and six-vertex model
Potential for exact calculations of correlation functions
Abstract
We obtain a new multiple integral representation for the spin-spin correlation functions of the XXZ spin-1/2 infinite chain. We show that this representation is closely related with the partition function of the six-vertex model with domain wall boundary conditions.
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