The Matsubara operator for the Fröhlich model

We use the generating functional method to consider the perturbation theory for the Matsubara operator for the Fröhlich model of an electron-phonon system. We obtain expressions determining the perturbed Hamiltonian of the electron-phonon system and the effective Hamiltonian of the electron system a...

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Published in:Theoretical and mathematical physics 2009-11, Vol.161 (2), p.1529-1539
Main Author: Arinshtein, É. A.
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Language:English
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Applications of Mathematics
Mathematical and Computational Physics
Physics
Physics and Astronomy
Theoretical
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description We use the generating functional method to consider the perturbation theory for the Matsubara operator for the Fröhlich model of an electron-phonon system. We obtain expressions determining the perturbed Hamiltonian of the electron-phonon system and the effective Hamiltonian of the electron system after averaging over phonon states.
doi_str_mv 10.1007/s11232-009-0139-7
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subjects Applications of Mathematics
Mathematical and Computational Physics
Physics
Physics and Astronomy
Theoretical
title The Matsubara operator for the Fröhlich model
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