Integrodifference equation for a correlation function of the spin 1/2 Heisenberg XXZ chain
Mar, 1995
13 pages
Published in:
- Nucl.Phys.B 446 (1995) 448-460
e-Print:
- cond-mat/9503142 [cond-mat]
Report number:
- BONN-TH-95-06
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Abstract: (Elsevier)
We consider the Ferromagnetic-String-Formation-Probability correlation function (FSFP) for the spin - 1 2 Heisenberg XXZ chain. We construct a , completely integrable system of integro-difference equations (IDE), which has the FSFP as a , τ-function. We derive the associated Riemann-Hilbert problem and obtain the long-distance asymptotics of the FSFP correlator in some limiting cases.- 75.10.Jm Quantized spin models
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