Now showing items 1-10 of 88
Dynamical correlations in Coulomb drag effect
Motivated by recent Coulomb drag experiments in pairs of low-density two-dimensional (2D) electron gases, we investigate the influence of correlation effects on the interlayer drag rate as a function of temperature. We use ...
Solid state communications: foreword
Mesoscopic Fano effect in an Aharonov-Bohm interferometer Coulomb-coupled to a nearby quantum dot
Motivated by the pionieering experiments of Buks et al. [Nature 391, 871 (1998)] we investigate the visibility of the Fano effect in a single-dot Aharonov-Bohm interferometer which is Coulomb-coupled to a nearby quantum ...
Ground-state properties and collective excitations in a 2D Bose-Einstein condensate with gravity-like interatomic attraction
We study the ground-state properties of a Bose-Einstein condensate (BEC) with the short-range repulsion and gravitylike 1/r interatomic attraction in two-dimensions (2D). Using the variational approach, we obtain the ...
Theoretical investigations on the energy relaxation in two-dimensional GaN systems
We theoretically study the energy relaxation of hot electrons via LO-phonon emission in two-dimensional GaN systems. We employ a model in which electrons and the lattice are in equilibrium separately, and the effective ...
Ground-state energy and compressibility of a disordered two-dimensional electron gas
(World Scientific Publishing, 2007)
Two-dimensional (2D) electron systems in the presence of disorder are of interest in connection with the observed metal-insulator transition in such systems. We use density functional theory in its local-spin density ...
Magnetization and spin susceptibility of an interacting two-dimensional electron gas
(American Institute of Physics, 2007)
We study the magnetic behavior and in particular the spin susceptibility of an interacting two-dimensional electron gas in a finite in-plane magnetic field. The total energy of the system is constructed using the recent ...
Mesoscopic fano effect in Aharonov-Bohm rings with an embedded double dot
(American Institute of Physics, 2006)
We investigate theoretically in a tight-binding model the transport properties of the Aharonov-Bohm interferometer (ABI) with one dot embedded in each of its arms. For weak interdot coupling the model Hamiltonian describes ...
Coulomb drag effect in parallel quantum dots
(American Institute of Physics, 2009)
We study theoretically the electronic transport in parallel few-level quantum dots in the presence of both intradot and interdot long-range Coulomb interaction. Each dot is connected to two leads and the steady-state ...
Localized magnetic polaritons in antiferromagnetic superlattice with impurity
The dispersion relation for magnetic polaritons localized at the antiferromagnetic impurity film in the antiferromagnetic superlattice (antiferromagnetic/nonmagnetic or antiferromagnetic/antiferromagnetic) are derived in ...