Plasmon attenuation and optical conductivity of a two-dimensional electron gas

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dc.creatorMishchenko, E. G.
dc.creatorReizer, M. Yu.
dc.creatorGlazman, L. I.
dc.date2003-12-29
dc.date2004-04-23
dc.date.accessioned2026-07-07T02:55:39Z
dc.date.available2026-07-07T02:55:39Z
dc.descriptionIn a ballistic two-dimensional electron gas, the Landau damping does not lead to plasmon attenuation in a broad interval of wave vectors q << k_F. Similarly, it does not contribute to the optical conductivity σ(ω, q) in a wide domain of its arguments, E_F > ω> qv_F, where E_F, k_F and v_F are, respectively, the Fermi energy, wavevector and velocity of the electrons. We identify processes that result in the plasmon attenuation in the absence of Landau damping. These processes are: the excitation of two electron-hole pairs, phonon-assisted excitation of one pair, and a direct plasmon-phonon conversion. We evaluate the corresponding contributions to the plasmon linewidth and to the optical conductivity.
dc.description8 pages, 4 figures; final form, misprints corrected
dc.identifierhttps://arxiv.org/abs/cond-mat/0312684
dc.identifierhttp://arxiv.org/abs/cond-mat/0312684
dc.identifierPhys. Rev. B 69, 195302 (2004).
dc.identifierdoi:10.1103/PhysRevB.69.195302
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23016
dc.subjectMesoscale and Nanoscale Physics
dc.titlePlasmon attenuation and optical conductivity of a two-dimensional electron gas
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