期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 73, 期 1, 页码 245-253出版社
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.73.245
关键词
correlation function; Bethe ansatz; XXZ chain; solvable models
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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