Wigner transport models of the electron-phonon kinetics in quantum wires

M. Nedjalkov, Dragica Vasileska, D. K. Ferry, C. Jacoboni, Christian Ringhofer, I. Dimov, V. Palankovski

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


Two quantum-kinetic models of ultrafast electron transport in quantum wires are derived from the generalized electron-phonon Wigner equation. The various assumptions and approximations allowing one to find closed equations for the reduced electron Wigner function are discussed with an emphasis on their physical relevance. The models correspond to the Levinson and Barker-Ferry equations, now generalized to account for a space-dependent evolution. They are applied to study the quantum effects in the dynamics of an initial packet of highly nonequilibrium carriers, locally generated in the wire. The properties of the two model equations are compared and analyzed.

Original languageEnglish (US)
Article number035311
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number3
StatePublished - 2006

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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