32 citations · 70 across the 7 of their papers we have counts for
3 papers · 1 filter
The gauge invariance of non-perturbative vertex prescriptions
M. E. Carrington, A. R. Frey, B. A. Meggison
We study the gauge invariance of different continuum methods to include non-perturbative effects in gauge theories. We work with three dimensional quantum electrodynamics and imple…
The 2PI effective theory at next-to-leading order using the functional renormalization group
M. E. Carrington, S. A. Friesen, B. A. Meggison +3
We consider a symmetric scalar theory with quartic coupling in 4-dimensions. We show that the 4 loop 2PI calculation can be done using a renormalization group method. The calculati…
The 2PI effective action at four loop order in theory
M. E. Carrington, B. A. Meggison, D. Pickering
It is well known that perturbative pressure calculations show poor convergence. Calculations using a two particle irreducible (2PI) effective action show improved convergence at th…