Temperature Correlations of Quantum Spins

@inproceedings{ARIts1992TemperatureCO,
  title={Temperature Correlations of Quantum Spins},
  author={A.R.Its and A.G.Izergin and V.E.Korepin and N.A.Slavnov},
  year={1992}
}
Isotropic XY is considered. It describes interaction of quantum spins on 1-dimesional lattice. Alternatevly one can call the model XXO Hiesenberg antiferromagnet. We solved long standing problem of evaluation of temperature corelations. We proved that correlation function of the model is $\tau $ function of Ablowitz-Ladik PDE. We explicitly evaluated asymptotics. 
3 Citations
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