Browsing by Author "Asgari, R."
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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 ... 
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 ... 
Effect of disorder on the groundstate properties of graphene
Asgari, R.; Vazifeh, M. M.; Ramezanali, M. R.; Davoudi, E.; Tanatar, Bilal (The American Physical Society, 2008)We calculate the groundstate energy of Dirac electrons in graphene in the presence of disorder. We take randomly distributed charged impurities at a fixed distance from the graphene sheet and surface fluctuations (ripples) ... 
Effective electronelectron interactions and magnetic phase transition in a twodimensional electron liquid
Asgari, R.; Esmailian, A.; Tanatar, Bilal (Elsevier B.V., 2007)We investigate the spindependent effective electronelectron interactions in a uniform system of twodimensional electrons to understand the spontaneous magnetization expected to occur at very low density. For this purpose, ... 
Effective mass enhancement in twodimensional electron systems: The role of interaction and disorder effects
Asgari, R.; Davoudi, B.; Tanatar, Bilal (Elsevier, 2004)Recent experiments on twodimensional (2D) electron systems have found a sharp increase in the effective mass of electrons with decreasing electron density. In an effort to understand this behavior we employ the manybody ... 
Effective mass suppression in a ferromagnetic twodimensional electron liquid
Asgari, R.; Gokmen, T.; Tanatar, Bilal; Padmanabhan, M.; Shayegan, M. (The American Physical Society, 2009)We present numerical calculations of the electron effective mass in an interacting ferromagnetic twodimensional electron system. We consider quantum interaction effects associated with the chargedensity fluctuationinduced ... 
Effects of disorder on the groundstate energy of a twodimensional electron gas
Asgari, R.; Tanatar, Bilal (The American Physical Society, 2002)We study the effects of disorder scattering on the groundstate energy of a twodimensional electron system.Considering charged impurity scattering within the modecoupling approximation to the memory ... 
ExchangeCorrelation effects and the quasiparticle properties in a twodimensional dipolar fermi liquid
Seydi, I.; Abedinpour, S. H.; Asgari, R.; Tanatar, Bilal (Springer, 2020)We investigate the effects of exchange and correlation on the quasiparticle properties such as the selfenergy, the manybody effective mass and the renormalization constant in a twodimensional system of ultracold dipolar ... 
Groundstate and dynamical properties of twodimensional dipolar Fermi liquids
Abedinpour, S. H.; Asgari, R.; Tanatar, Bilal; Polini, M. (Elsevier Inc., 2014)We study the groundstate properties of a twodimensional spinpolarized fluid of dipolar fermions within the EulerLagrange Fermihypernettedchain approximation. Our method is based on the solution of a scattering ... 
Hardcore Yukawa model for twodimensional chargestabilized colloids
Asgari, R.; Davoudi, B.; Tanatar, Bilal (American Physical Society, 200110)The hypernetted chain and PercusYevick approximations are used to study the phase diagram of a simple hardcore Yukawa model of chargestabilized colloidal particles in a twodimensional system. We calculate the static ... 
Manybody effective mass and spin susceptibility in a quasitwodimensional electron liquid
Asgari, R.; Tanatar, Bilal (The American Physical Society, 2006)We present numerical calculations of the effect of electronelectron interactions on the quasiparticle properties such as the effective mass and the Landé g factor in a GaAs AlGaAs triangular quantum well from which the ... 
Quasiparticle properties in a quasitwodimensional electron liquid
Asgari, R.; Tanatar, Bilal (Indian Academy of Sciences, 2008)We consider the quasiparticle properties such as the effective mass and spin susceptibility of quasitwodimensional electron systems. The finite quantum well width effects are incorporated into the localfield factors ... 
Rotons and Bose condensation in Rydbergdressed Bose gases
Seydi, I.; Abedinpour, S. H.; Zillich, R. E.; Asgari, R.; Tanatar, Bilal (American Physical Society, 2020)We investigate the groundstate properties and excitations of Rydbergdressed bosons in both three and two dimensions, using the hypernettedchain EulerLagrange approximation, which accounts for correlations and thus goes ... 
Static localfield factors in a twodimensional electron liquid
Asgari, R.; Subaşi, A. L.; SabouriDodaran, A. A.; Tanatar, Bilal (The American Physical Society, 2006)We present a numerical calculation for the static spinsymmetric and spinantisymmetric localfield factors as a function of density in a twodimensional (2D) unpolarized electron liquid. We use a recent analytical expression ...