217 citations · 1k across the 53 of their papers we have counts for
55 papers
One loop Volkov propagator in the Lorentz class of gauges
Martin Lavelle, David McMullan
We calculate the ultraviolet divergences in a weak field expansion of the Volkov propagator. This is done for the full Lorentz class of gauges. The expected gauge invariance of the…
Renormalisation of the Volkov propagator
Martin Lavelle, David McMullan
The perturbative description of an electron propagating in a plane wave background is developed and loop corrections analysed. The ultraviolet divergences and associated renormalis…
Electrons in an eccentric background field
Martin Lavelle, David McMullan
We present a description of electrons propagating in an elliptically polarised plane wave background which includes circular and linear polarisations as special cases. We calculate…
The Fermionic Propagator in an Intense Background
Martin Lavelle, David McMullan
New results for the fermion propagator in a laser background are presented. We show that the all orders electron propagator can be written in a compact and appealing form as a sum…
Sideband Mixing in Intense Laser Backgrounds
Martin Lavelle, David McMullan
The electron propagator in a laser background has been shown to be made up of a series of sideband poles. In this paper we study this decomposition by analysing the impact of the r…
Propagation in an intense background
Martin Lavelle, David McMullan, Merfat Raddadi
The canonical quantisation of a charged particle in an intense laser background is developed and the associated two-point function calculated. It is shown how the causal propagator…