Abstract
A simple method is proposed for uncoupling a complex chain of Green's function (GF) equations when the initial GF is coupled simultaneously with several higher-order GF. Uncoupling of the chain of equations of motion for the nuclear spin anticommutator Green's function provides an example of the use of this method.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
N. N. Bogolyubov (editor), Statistical Physics and Quantum Field Theory [in Russian], Nauka, Moscow (1973); V. L. Bonch-Bruevich and S. V. Tyablikov, Green's-Function Method in Statistical Mechanics [in Russian], Fizmatgiz, Moscow (1961); S. V. Tyablikov, Methods of the Quantum Theory of Magnetism [in Russian] (1965).
A. A. Al'tshuler and S. M. Kozyrev, Electron Paramagnetic Resonance [in Russian], Fizmatgiz, Moscow (1951).
B. I. Kochelaev, in: Paramagnetic Resonance [in Russian], Kazan (1964).
M. N. Aliev, Fiz. Tverd. Tela,11, 81 (1969).
M. McMillan and W. Opechowski, Canad. J. Phys.,38, No. 11, 68 (1973).
R. R. Nigmatullin, Teor. Mat. Fiz.,18, No. 2 (1974).
Author information
Authors and Affiliations
Additional information
Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 8, pp. 126–133, August, 1978.
Rights and permissions
About this article
Cite this article
Aliev, M.N. Nonsteady perturbation theory for Green's functions. Soviet Physics Journal 21, 1081–1087 (1978). https://doi.org/10.1007/BF00892372
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00892372