Biomedical subjects
Publications and source records attributed to A LeClair.
By making use of current-algebra Ward identities we study renormalization of general anisotropic current-current interactions in 2D. In this prescription we propose a compact expression for the beta function to all orders.
We consider the effects of disorder in a Dirac-like Hamiltonian. In order to use conformal field theory techniques, we argue that one should consider disorder in an imaginary vector potential. This affects significantly the signs of the lowest order beta functions. We present evidence for the existence of two distinct universality classes, depending on the relative strengths of the gauge field verses impurity disorder strengths. In one class all disorder is made irrelevant by the gauge field disorder.