I am interested in quantum criticality in heavy fermions, and especially to
the competition between Kondo formation and magnetic fluctuations close to the
QCP. I believe thes QCP show several universality classes and that a new
degree of freedom, a massless fermionic excitation exists at criticality.  My
second domain of interest is to explore the validity of spin-fermion type
models for quantum critical points (ferromagnetic or antiferromagnetic) of
itinerant nature. The intrinsic coherence of the model has been recently
questionned and I am ineterested in determining when it can be applied to
QCP. As an example, I have recently been involved in the evaluation of
interference correction to the conductivity close to a ferromagnetic QCP.