Inelastic Coulomb scattering rate of a multisubband Q1D electron gas

Details Inelastic Coulomb scattering rate of a multisubband Q1D electron gas Inelastic Coulomb scattering rate of a multisubband Q1D electron gas

1999-03-12

arxiv.org/abs/cond-mat/9903212v1

Physics

Condensed Matter

Strongly Correlated Electrons

9 pages, REVTEX, 2 figures

Scientific paper

In this work, the Coulomb scattering lifetimes of electrons in two coupled quantum wires have been studied by calculating the quasiparticle self-energy within a multisubband model of quasi-one-dimensional (Q1D) electron system. We consider two strongly coupled quantum wires with two occupied subbands. The intrasubband and intersubband inelastic scattering rates are caculated for electrons in different subbands. Contributions of the intrasubband, intersubband plasmon excitations, as well as the quasiparticle excitations are investigated. Our results shows that the plasmon exictations of the first subband are the most important scattering mechanism for electrons in both subbands.

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