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arXiv · 2311.17196

Space-like asymptotics of the thermal two-point functions of the XXZ spin-1/2 chain

F. Göhmann·K. K. Kozlowski
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Abstract

This work proposes a closed formula for the leading term of the long-distance and large-time asymptotics in a cone of the space-like regime for the transverse dynamical two-point functions of the XXZ spin 1/2 chain at finite temperatures. The result follows from a simple analysis of the thermal form factor series for dynamical correlation functions. The leading asymptotics we obtain are driven by the Bethe Ansatz data associated with the first sub-leading Eigenvalue of the quantum transfer matrix.

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F. Göhmann, K. K. Kozlowski. 2023-11-28. Space-like asymptotics of the thermal two-point functions of the XXZ spin-1/2 chain. https://doi.org/10.1088/1742-5468%2Fad267c

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