Dynamical correlation functions of the XXZ spin-1/2 chain
N. Kitanine, J. M. Maillet, N. A. Slavnov, V. Terras
TL;DR
This paper derives a master equation and multiple integral representation for the dynamical spin-spin correlation functions of the XXZ spin-1/2 chain in a magnetic field, advancing analytical understanding of its dynamics.
Contribution
It introduces a novel master equation and integral formulas for dynamical correlations in the XXZ chain, extending previous static analyses.
Findings
Master equation for dynamical correlations derived
Multiple integral representation obtained in the thermodynamic limit
Provides analytical tools for studying spin dynamics
Abstract
We derive a master equation for the dynamical spin-spin correlation functions of the XXZ spin-1/2 Heisenberg finite chain in an external magnetic field. In the thermodynamic limit, we obtain their multiple integral representation.
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