Covariant non-local action for massless QED and the curvature expansion
Crossref DOI link: https://doi.org/10.1007/JHEP10(2015)044
Published Online: 2015-10-07
Published Print: 2015-10
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Donoghue, John F.
El-Menoufi, Basem Kamal