Equations for two-temperature Green’s functions for a Heisenberg ferromagnet in the mode-coupling approximation |
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| Authors: | Yu A Tserkovnikov |
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| Institution: | (1) Steklov Mathematical Institute, RAS, Moscow, Russia |
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| Abstract: | We use the mode-coupling approximation to derive a closed system of equations for the Green’s functions for the transverse
and longitudinal spin components taking the sum rules related to the finiteness of the spin into account exactly.
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Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 154, No. 1, pp. 197–207, January, 2008. |
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| Keywords: | mode-coupling approximation sum rules for spin operators |
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