Browsing by Author "Tanatar, Bilal"
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Collective modes in a quasionedimensional, twocomponent electron liquid
Tanatar, Bilal (Pergamon Press, 1994)Under favorable conditions, a new collective mode besides the usual plasmons may exist in degenerate electronhole liquids. We calculate the dispersion and damping of this new mode (called the acoustic plasmon mode) in a ... 
Collective modes in flux line liquids
Tanatar, Bilal; Oral, A. (IOP, 2000)We study the collective modes of flux line liquids such as occur in the typeII superconductors of recent interest composed of twodimensional layered structures. Starting from the vortexvortex interaction and employing ... 
Collective oscillations in a twodimensional BoseEinstein condensate with a quantized vortex state
Banerjee, A.; Tanatar, Bilal (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 BoseEinstein 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
Asgari, R.; Tanatar, Bilal; Davoudi, B. (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
Seydi, I.; Abedinpour, S. H.; Asgari, R.; Tanatar, Bilal (American Physical Society, 2018)Strong particleplasmon interaction in electronic systems can lead to composite holeplasmon excitations. We investigate the emergence of similar composite quasiparticles in ultracold dipolar Fermi liquids originating from ... 
Compressibility anomaly in a disordered twodimensional electron gas
Tanatar, Bilal (Nova Science Publishers, 2006) 
Compressibility of a twodimensional electron gas in a parallel magnetic field
Subaşi, A. L.; Tanatar, Bilal (Elsevier B.V., 2007)The thermodynamic compressibility of a twodimensional electron system in the presence of an inplane 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
Bennett, C. R.; Güven, K.; Tanatar, Bilal (Elsevier Science, 1999)We consider the different approximations for the bandgap renormalization (BGR) within the random phase approximation (RPA), the quasistatic limit and the plasmonpole approximation, and compare with the full result. We ... 
Confinedphonon effects in the bandgap renormalization of semiconductor quantum wires
Bennett, C. R.; Güven, K.; Tanatar, Bilal (American Physical Society, 1998)We calculate the bandgap renormalization in quasionedimensional semiconductor quantum wires including carriercarrier and carrierphonon interactions. We use the quasistatic approximation to obtain the selfenergies at ... 
Controlled dephasing in singledot AharonovBohm interferometers
Moldoveanu, V.; Ţolea, M.; Tanatar, Bilal (2007)We study the Fano effect and the visibility of the AharonovBohm oscillations for a mesoscopic interferometer with an embedded quantum dot in the presence of a nearby second dot. When the electronelectron interaction ... 
Correlation effects in a onedimensional electron gas with shortrange interaction
Demirel, E.; Tanatar, Bilal (Pergamon Press, 1999)We study the correlation effects in a onedimensional electron gas with repulsive deltafunction interaction. The correlation effects are described by a localfield correction which takes into account the shortrange ... 
Correlation effects in bosonfermion plasmas
Tanatar, Bilal (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 twocomponent plasma. Bosonfermion mixtures are recently of particular attention because of their ... 
Correlation effects in the impuritylimited mobility of quantum wires
Tanatar, Bilal; Gold, A. (American Physical Society, 1995)We study manybody effects, introduced via the localfield corrections, on the mobility of quasionedimensional electron systems. The lowtemperature mobility due to remoteimpurity doping, homogeneousbackground doping, ... 
Correlations in a onedimensional Bose gas
Demirel, E.; Tanatar, Bilal (American Physical Society, 1999)We study the correlation effects in a onedimensional Bose gas with repulsive deltafunction interaction. The correlation effects are described by a localfield correction which takes into account the shortrange correlations. ... 
Correlations in charged fermionboson mixture in dimensionalities D = 2 and D = 3
Asgari, R.; Tanatar, Bilal (Elsevier B.V., 2006)We numerically study the correlation effects in a twocomponent charged fermionboson 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
Tanatar, Bilal (Pergamon Press, 1996)We study the Coulomb drag rate for electrons in two parallel quantum wires. The doublequantum 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
Tanatar, Bilal; Moldoveanu, V. (American Institute of Physics, 2009)We study theoretically the electronic transport in parallel fewlevel quantum dots in the presence of both intradot and interdot longrange Coulomb interaction. Each dot is connected to two leads and the steadystate ... 
Coulomb drag in parallel quantum dots
Oldoveanu, V.; Tanatar, Bilal (Europhysics Letters Association, 2009079)We study theoretically the electronic transport in parallel fewlevel quantum dots in the presence of both intradot and interdot longrange Coulomb interaction. Each dot is connected to two leads and the steadystate ... 
Coulomb effects in open quantum dots within the randomphase approximation
Moldoveanu, V.; Tanatar, Bilal (The American Physical Society, 2008)The effect of electronelectron interactions on coherent transport in quantum dot systems is theoretically investigated by adapting the wellknown randomphase approximation (RPA) to the nonequilibrium GreenKeldysh formalism ... 
Counterflow in Bose gas bilayers: collective modes and dissipationless drag
Abedinpour, S. H.; Tanatar, Bilal (American Institute of Physics, 2020)We investigate the collective density oscillations and dissipationless drag effect in bilayer structures of ultracold bosons in the presence of counterflow. We consider different types of interparticle interactions and ...