Alex's research is in the field of theoretical condensed matter physics. It is concerned particularly with systems where the inter-electron interactions are very strong so that conventional perturbation methods for the calculation of the electronic properties are not applicable, and non-perturbative methods are required.
Dr Alex Hewson's personal web page can be found at http://www.ma.ic.ac.uk/~ahewson
Oguri A, Hewson AC, 2018, Higher-order Fermi-liquid corrections for an Anderson impurity away from half filling : Equilibrium properties, Physical Review B, Vol:97, ISSN:2469-9950
Oguri A, Hewson AC, 2018, Higher-order Fermi-liquid corrections for an Anderson impurity away from half filling: Nonequilibrium transport, Physical Review B, Vol:97, ISSN:2469-9950
et al., 2016, Conditions for observing emergent SU(4) symmetry in a double quantum dot, Physical Review B, Vol:93, ISSN:2469-9950
Hewson AC, 2016, Renormalized parameters and perturbation theory in dynamical mean-field theory for the Hubbard model, Physical Review B, Vol:94, ISSN:2469-9950