• Aspects of quantum field theories 

      Van Biljon, Andrew (Stellenbosch : Stellenbosch University, 1997)
      ENGLISH ABSTRACT: In this study project we give a general introduction to quantum field theories. In the first chapter we revise the operator formalism of quantum mechanics as well as the second quantization scheme that ...
    • Locating the inner edge of a neutron star crust 

      Van Rooy, Milton William (Stellenbosch : University of Stellenbosch, 2010-12)
      ENGLISH ABSTRACT: The overall goal of this project is to study neutron star properties and locate the transition density from the core to the crust using fifteen parameter sets of the effective Skyrme nucleon-nucleon interaction ...
    • Non-commutative quantum mechanics : properties of piecewise constant potentials in two dimensions 

      Thom, Jacobus D. (Jacobus Daniel) (Stellenbosch : University of Stellenbosch, 2010-12)
      ENGLISH ABSTRACT: The aim of this thesis is threefold. Firstly, I give an overview of non-commutative quan- tum mechanics and build up a description of non-commutative piecewise constant poten- tial wells in this context. ...
    • A non-commutative walecka model as an effective theory for interacting nucleons of finite size 

      Groenewald, Hendrikus Wilhelm. (Stellenbosch : Stellenbosch University, 2012-03)
      ENGLISH ABSTRACT: The nite size of nucleons should play an important role in the description of high density nuclear matter as found in astro-physical objects. Yet we see that the Walecka model, which is generally used ...
    • Vacuum polarisation energies of two interacting scalar fields with a mass gap in (1 + 1) dimensions 

      Capraro, Martin Horst (Stellenbosch : Stellenbosch University, 2014-12)
      ENGLISH ABSTRACT: The tools of perturbative Quantum Field Theory are by now a standard part of the theoretical physicist's arsenal. In this thesis we investigate the spectral method, an approach that uses tools from the ...