Members of the group have a wide range of interests in theoretical physics spanning the areas of group theory, quantum chemistry, quantum field theory, particle physics, statistical mechanics, general relativity, quantum gravity, classical and quantum cosmology.
Cosmology. Astroparticle physics. Detection of high-energy neutrinos.
Algebraic and group theoretic methods for solving eigenvalue problems arising in quantum mechanics, especially the calculation of 3jm and 6j coefficients for various compact groups. Properties of electromagnetic solutions of the Dirac equation. Design and development of copper-vapour and carbon dioxide lasers. (See also Medical Physics section.)
Cosmology and Astroparticle physics.
Optical properties of lanthanide and actinide ions in condensed matter. Energy levels, one and two-photon transitions, optical activity, non-radiative transitions, energy transfer. Parametric analyses of experimental data, many-body calculations, group-theoretical techniques.
General relativity, quantum gravity and cosmology. Averaging and backreaction in inhomogeneous cosmologies. Dark energy.
Diagram techniques in quantum field theory and group theory. Phonon interaction and Jahn-Teller effects in condensed matter spectroscopy. Polarisation dependence of nonlinear optical processes. Interferometric tests of physical theories. (See also Ring Laser section.)
Emeritus Professor Alister G McLellan.
Lattice dynamics. Thermodynamics of anisotropic media.
Interface of gravitational and quantum realms, neutrino oscillations, representation space theory, theory of quantum fields, and nature and questions related to dark matter and dark energy.
Cosmological implications of quantum field theories, general relativity and M/superstring theories, theories of inflation, cosmological perturbations, warped extra dimensions, models of dark energy and modified gravity, and black hole physics.