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Next Nearest-Neighbor Correlation Functions of the Spin-1/2 XXZ Chain at Massive Region

Minoru Takahashi·Go Kato·Masahiro Shiroishi
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Abstract

The second neighbor correlation functions of the spin-${1/2}$ $XXZ$ chain in the ground state are expressed in the form of three dimensional integrals. We show that these integrals can be reduced to one-dimensional ones and thereby evaluate the values of the next nearest-neighbor correlation functions for ${Δ>1}$.

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Minoru Takahashi, Go Kato, Masahiro Shiroishi. 2003-08-28. Next Nearest-Neighbor Correlation Functions of the Spin-1/2 XXZ Chain at Massive Region. https://doi.org/10.1143/jpsj.73.245

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