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Now showing items 1-10 of 17

#### 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. ...

#### Vortices in trapped boson-fermion mixtures

(Springer, 2005)

We consider a trapped system of atomic boson-fermion mixture with a quantized vortex. We investigate the density profiles of bosonic and fermionic components as functions of the boson-boson and boson-fermion short-range ...

#### Effect of cross-sectional geometry on the RPA plasmons of quantum wires

(Pergamon Press, 1994)

The effect of cross-sectional geometry on both the intrasubband plasmon and intersubband plasmon of a quantum wire is investigated within a two-subband RPA scheme. Exact analytical electronic wavefunctions for circular, ...

#### Dynamical screening effects in hot-electron scattering from electron-hole plasma and LO-phonon modes in quantum wires

(Elsevier, 1996)

We present a fully dynamical and finite temperature study of the hot-electron momentum relaxation rate and the power loss in a coupled system of electron-hole plasma and bulk LO-phonons in a quantum wire structure. ...

#### Energy-transfer rate in a double-quantum-well system due to Coulomb coupling

(Elsevier, 2002)

We study the energy-transfer rate for electrons in a double-quantum-well structure, where the layers are coupled through screened Coulomb interactions. The energy-transfer rate between the layers (similar to the Coulomb ...

#### Coulomb drag effect in parallel cylindrical quantum wires

(Pergamon Press, 1996)

We study the Coulomb drag rate for electrons in two parallel quantum wires. The double-quantum wire structure is modeled for a GaAs material with cylindrical wires having infinite potential barriers. The momentum transfer ...

#### Confined optical phonon effects on the band gap renormalization in quantum wire structures

(Elsevier Science, 1999)

We consider the different approximations for the bandgap renormalization (BGR) within the random phase approximation (RPA), the quasi-static limit and the plasmon-pole approximation, and compare with the full result. We ...

#### Collective modes in a quasi-one-dimensional, two-component electron liquid

(Pergamon Press, 1994)

Under favorable conditions, a new collective mode besides the usual plasmons may exist in degenerate electron-hole liquids. We calculate the dispersion and damping of this new mode (called the acoustic plasmon mode) in a ...

#### Collective modes in flux line liquids

(IOP, 2000)

We study the collective modes of flux line liquids such as occur in the type-II superconductors of recent interest composed of two-dimensional layered structures. Starting from the vortex-vortex interaction and employing ...

#### Many-body effects in the Coulomb drag between low density electron layers

(Elsevier Science, 2003)

Recent Coulomb drag experiments in low-density double-layer electron systems have the power of distinguishing various many-body formulations of the effective interactions. In this work we theoretically study the correlation ...