Browsing by Author "Tanatar, Bilal"
Now showing items 21-40 of 212
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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 ... -
Collective oscillations in a two-dimensional Bose-Einstein condensate with a quantized vortex state
(The American Physical Society, 2005)We study the effect of lower dimensional geometry on the frequency splitting of the quadrupole oscillations of a harmonically trapped Bose-Einstein condensate due to the presence of a quantized vortex. To study the effect ... -
Comparative study of screened interlayer interactions in the Coulomb drag effect in bilayer electron systems
(The American Physical Society, 2008)Coulomb drag experiments in which the interlayer resistivity is measured are important as they provide information on the Coulomb interactions in bilayer systems. When the layer densities are low correlation effects become ... -
Composite quasiparticles in strongly correlated dipolar Fermi liquids
(American Physical Society, 2018)Strong particle-plasmon interaction in electronic systems can lead to composite hole-plasmon excitations. We investigate the emergence of similar composite quasiparticles in ultracold dipolar Fermi liquids originating from ... -
Compressibility anomaly in a disordered two-dimensional electron gas
(Nova Science Publishers, 2006) -
Compressibility of a two-dimensional electron gas in a parallel magnetic field
(Elsevier B.V., 2007)The thermodynamic compressibility of a two-dimensional electron system in the presence of an in-plane magnetic field is calculated. We use accurate correlation energy results from quantum Monte Carlo simulations to construct ... -
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 ... -
Confined-phonon effects in the band-gap renormalization of semiconductor quantum wires
(American Physical Society, 1998)We calculate the band-gap renormalization in quasi-one-dimensional semiconductor quantum wires including carrier-carrier and carrier-phonon interactions. We use the quasistatic approximation to obtain the self-energies at ... -
Controlled dephasing in single-dot Aharonov-Bohm interferometers
(2007)We study the Fano effect and the visibility of the Aharonov-Bohm oscillations for a mesoscopic interferometer with an embedded quantum dot in the presence of a nearby second dot. When the electron-electron interaction ... -
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 ... -
Correlation effects in boson-fermion plasmas
(Editions de Physique, Les Ulis Cedex A, France, 2000)A system of charged bosons and electrons interacting with each other via the Coulomb potential comprises an interesting two-component plasma. Boson-fermion mixtures are recently of particular attention because of their ... -
Correlation effects in the impurity-limited mobility of quantum wires
(American Physical Society, 1995)We study many-body effects, introduced via the local-field corrections, on the mobility of quasi-one-dimensional electron systems. The low-temperature mobility due to remote-impurity doping, homogeneous-background doping, ... -
Correlations in a one-dimensional Bose gas
(American Physical Society, 1999)We study the correlation effects in a one-dimensional Bose gas with repulsive delta-function interaction. The correlation effects are described by a local-field correction which takes into account the short-range correlations. ... -
Correlations in charged fermion-boson mixture in dimensionalities D = 2 and D = 3
(Elsevier B.V., 2006)We numerically study the correlation effects in a two-component charged fermion-boson mixture at zero temperature investigating the role played by the statistical effects and Coulomb correlations in a model with different ... -
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 ... -
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 ... -
Coulomb drag in parallel quantum dots
(Europhysics Letters Association, 2009-07-9)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 ... -
Coulomb effects in open quantum dots within the random-phase approximation
(The American Physical Society, 2008)The effect of electron-electron interactions on coherent transport in quantum dot systems is theoretically investigated by adapting the well-known random-phase approximation (RPA) to the nonequilibrium Green-Keldysh formalism ... -
Counterflow in Bose gas bilayers: collective modes and dissipationless drag
(American Institute of Physics, 2020)We investigate the collective density oscillations and dissipationless drag effect in bilayer structures of ultra-cold bosons in the presence of counterflow. We consider different types of inter-particle interactions and ...
