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

Nedjalkov, M., Vasileska, D., Ferry, D. K., Jacoboni, C., Ringhofer, C., Dimov, I. and Palankovski, V. (2006) Wigner Transport models of the electron-phonon kinetics in quantum wires. Physical Review B, 74 (3). 035311-1 . ISSN 1098-0121

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To link to this item DOI: 10.1103/PhysRevB.74.035311

Abstract/Summary

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.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Science
ID Code:15347
Publisher:American Physical Society

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