Linear Optics Quantum Computing
The University of Queensland, Brisbane
Supervisor: Prof. Andrew White, The University of Queensland, Brisbane

Project Outline
Group webpage

Electron Paramagnetic Resonance: Study of Nitrogen Defects (Ns⁰) in Diamond
The University of Warwick, Coventry
Supervisor: Dr. Mark Newton, The University of Warwick, Coventry

Abstract

Electron paramagnetic resonance spectroscopy has been used to study the NS0 defect in diamond. Reorientation of the defect was investigated by thermal annealing on a carbon vapour decomposition (CVD) grown crystal. The activation energy was found to be 1.0±0.2 eV. Measurement of maximum reorientation frequency was inconclusive but lay between 10¹⁵ - 3x10¹⁶ Hz. Simulated fitting algorithm and raw data analysis methods were employed to calculate concentrations of three high temperature high pressure (HTHP) and one CVD sample. However, EPR line width and optical spectroscopy measurements prove more consistent in estimating defect concentrations. One HTHP sample gave EPR profiles evident of a multiple sector type crystal.

Please contact me by email, matt@quantumbrain.info, for a copy of this thesis.

Development of a new detection technique for oscillations in the solar corona
Center for Fusion, Space and Astrophysics
The University of Warwick, Coventry
Supervisor: Prof. Valery Nakariakov, The University of Warwick, Coventry

Abstract

The aim of this project was to design and construct a computer program in c++ to detect solar coronal oscillatory activity on the surface of the sun. Images sent back from the satellite TRACE (Transition Region and Coronal Explorer) were read and compiled into a three dimensional data-cube. Fourier analysis of each pixel was used to determine periodic behaviour. A period map is shown in figure 1. Such a map is used to characterise different magnetic regions and group periodic behaviour.

Figure 1. Periodmap of oscillatory behaviour on the surface of the sun. Bulk coloured regions are indications of group periodic behaviour.