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Journal of Computational Electronics

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19-08-2016

On the local approximation of the electron–photon interaction self-energy

Authors: Nicolas Cavassilas, Fabienne Michelini, Marc Bescond

Published in: Journal of Computational Electronics | Issue 4/2016

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Abstract

We investigate the impact of the so-called local, i.e., diagonal, approximation for the electron–photon scattering self-energy, within the nonequilibrium Green’s function formalism. We report on three different systems to show that the local approximation may dramatically degrade expected selection rules, but that this degradation has minor impacts on the physical properties of realistic systems in which other scattering processes are assumed.

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Title: On the local approximation of the electron–photon interaction self-energy
Authors: Nicolas Cavassilas
Fabienne Michelini
Marc Bescond
Publication date: 19-08-2016
Publisher: Springer US
Published in: Journal of Computational Electronics / Issue 4/2016
Print ISSN: 1569-8025
Electronic ISSN: 1572-8137
DOI: https://doi.org/10.1007/s10825-016-0883-5

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