String correlation functions of the spin-1/2 Heisenberg XXZ chain
String correlation functions of the spin-1/2 Heisenberg XXZ chain
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DOI：
10.1088/1751-8113/40/16/001
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发表时间：
2006-12
期刊：
影响因子：
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通讯作者：
M. Bortz;J. Sato;M. Shiroishi
中科院分区：
文献类型：
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作者：
M. Bortz;J. Sato;M. Shiroishi
We calculate certain string correlation functions, originally introduced as order parameters in integer spin chains, for the spin-1/2 XXZ Heisenberg chain at zero temperature and in the thermodynamic limit. For small distances, we obtain exact results from Bethe Ansatz and exact diagonalization, whereas in the large-distance limit, field-theoretical arguments yield an asymptotic algebraic decay. We also make contact with two-point spin-correlation functions in the asymptotic limit.
