My research is principally concerned with the implementation of small quantum computers using nuclear magnetic resonance (NMR) techniques. I currently have a special interest in developing logic gates which are robust against systematic hardware errors, using the ideas of composite and shaped pulses developed in NMR. Previously I have worked on applications of geometric phases to robust logic, the use of para-hydrogen to prepare pure spin states in NMR experiments, and the use of ideas from quantum cellular automata to implement quantum information processing in systems with only limited control.
Beyond this I have a historic interest in the development of NMR techniques to study chemical and biochemical systems and in the use of ideas from quantum information processing to understand spin-sensing chemical reactions. I have also written on data analysis and computer aided analysis of legislation.