Now showing items 191-194 of 194
Correlation effects in a one-dimensional electron gas with short-range interaction
(Pergamon Press, 1999)
We study the correlation effects in a one-dimensional electron gas with repulsive delta-function interaction. The correlation effects are described by a local-field correction which takes into account the short-range ...
Short-range correlation effects on the plasmons in cylindrical tubules
(American Physical Society, 1997)
We study the collective excitation of single and coaxial cylindrical tubules in the very low density regime. Exchange-correlation effects neglected in the random-phase approximation are shown to be important for plasmon ...
Inelastic transitions and counterflow tunneling in double-dot quantum ratchets
(The American Physical Society, 2010)
The ratchet regime of unbiased double quantum dots driven out of equilibrium by an independently biased nearby detector has been theoretically studied using the nonequilibrium Keldysh formalism and the random-phase ...
Phonon confinement and screening effects on the polaron energy in quantum wires
(Institute of Physics Publishing Ltd., 1995)
We study the contribution of confined phonons to the polaron energy in quantum-well wires. We use a dispersionless, macroscopic continuum model to describe the phonon confinement in quantum wires of square cross section. ...