Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 73, Issue 1, Pages 245-253Publisher
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.73.245
Keywords
correlation function; Bethe ansatz; XXZ chain; solvable models
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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 Delta > 1.
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