Now showing items 1-7 of 7

    • Extended phase diagram of ASEP with two types of particles 

      Yeşil, Ayşe Ferhan (Bilkent University, 2010)
      The ASEP (Asymmetric Simple Exclusion Process) model system with two types of particles is studied. The system is interesting because it exhibits spontaneous symmetry breaking when parameters controlling the dynamics of ...
    • Hard spin mean field theory of 3D stacked-triangular-lattice system 

      Akgüç, Gürsoy Bozkurt (Bilkent University, 1994)
      Closed form solution of ‘Hard spin mean field theory’ is constructed and applied to ‘Three dimensional stacked-triangular-system’. The phase diagram of this system is examined. ‘Free energy’ is calculated to reveal ...
    • Mean-field renormalization group theory of the t-J model 

      Şen, Cengiz (Bilkent University, 2002)
      The quantum nature of the high temperature superconductivity models makes analytical approaches to these systems almost impossible to implement. In this thesis, a computational study of the one and two dimensional t − J ...
    • Non-equilibrium steady state phase transitions of various statistical models 

      Renklioğlu, Başak (Bilkent University, 2013)
      Non-equilibrium phase transitions of a number of systems are investigated by several methods. These systems are in contact with thermal baths with different temperatures and taken to be driven to the non-equilibrium ...
    • Phase transitions in tetrahedral Ising lattices 

      Kabakçıoğlu, Alkan (Bilkent University, 1993)
      After a review of the Renormalization CJroup theory, the phase diagram of unisotro])ic tetrahedral Ising lattice is explored l)y the motivation gained through the recent experimental findings about SiGe alloys. ...
    • A time-dependent study of bistability in resonant tunneling structures 

      Keçecioğlu, Ersin (Bilkent University, 1997)
      A comjDutational time-dependent study of the bistability in resonant tunneling structures including the electron-electron interactions is presented. A new computational method for the investigation of many jDarticle ...
    • Two-temperature Ising model at an exact limit 

      Sanlı, Ceyda (Bilkent University, 2008)
      We analyze the order-disorder transition for a two dimensional Ising model. We consider a ferromagnetic exchange interaction between the nearest neighbor Ising spins. The spin exchanges are introduced in two different ...