TY - JOUR
T1 - Wigner transport models of the electron-phonon kinetics in quantum wires
AU - Nedjalkov, M.
AU - Vasileska, Dragica
AU - Ferry, D. K.
AU - Jacoboni, C.
AU - Ringhofer, Christian
AU - Dimov, I.
AU - Palankovski, V.
PY - 2006
Y1 - 2006
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevB.74.035311
DO - 10.1103/PhysRevB.74.035311
M3 - Article
AN - SCOPUS:33745957780
SN - 1098-0121
VL - 74
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 3
M1 - 035311
ER -