Kotze, Antonie Abraham2019-01-312019-01-311992https://hdl.handle.net/10539/26359A thesis submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, South Africa, in fulfilment of the requirements for the Degree of Doctor of Philosophy.Quantum chaos is associated with the phenomenon of avoided level crossings on a large scale which leads to a statistical behaviour similar to that of a Gaussian Orthogonal Ensemble (GOE) of matrices. (Abbreviation abstract)enQuantum chaos.Spectrum analysis.Thesis