A. G. Izergin, A. R. Its, V. E. Korepin, N. A. Slavnov, “Integrable differential equations for temperature correlation functions of the Heisenberg XXO chain”, Zap. Nauchn. Sem. POMI, 1993, Volume 205,Pages <nobr>6

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Integrable differential equations for temperature correlation functions of the Heisenberg XXO chain

A. G. Izergin, A. R. Its, V. E. Korepin, N. A. Slavnov

Abstract: It is shown that two-point time-dependent temperature correlators of the Heisenberg XXO spinichain satisfy a system of classical equations in the distance between correlating spins and time. This system is an integrable lattice version of the nonlinear Schrödinger equations. Bibliography: 17 titles.

UDC: 519.4