5 papers · 1 filter
Electric-Magnetic Duality in Massless QED?
Chris Ford
The possibility that QED and recently developed non-Hermitian, or magnetic, versions of QED are equivalent is considered. Under this duality the Hamiltonians and anomalous axial cu…
A Causal Algebra for Liouville Exponentials
Chris Ford, George Jorjadze
A causal Poisson bracket algebra for Liouville exponentials on a cylinder is derived using an exchange algebra for free fields describing the in and out asymptotics. The causal alg…
Doubly Periodic Instanton Zero Modes
Chris Ford, Jan M. Pawlowski
Fermionic zero modes associated with doubly periodic SU(2) instantons of unit charge are considered. In cases where the action density exhibits two `instanton cores' the zero mode…
Integration of the SL(2,R)/U(1) Gauged WZNW Theory by Reduction and Quantum Parafermions
C. Ford, G. Jorjadze, G. Weigt
Using a gauge invariant reduction we directly integrate the SL(2,R)/U(1) WZNW theory. We prove that the conserved parafermions of this theory are coset currents. Quantum mechanical…
Multiscale Renormalization and Decoupling
Christopher Ford
The standard MS renormalization prescription is inadequate for dealing with multiscale problems. To illustrate this, we consider the computation of the effective potential in the H…