The effective action in Einstein-Maxwell theory
arXiv:0812.2729 · doi:10.1063/1.3131572
Abstract
Considerable work has been done on the one-loop effective action in combined electromagnetic and gravitational fields, particularly as a tool for determining the properties of light propagation in curved space. After a short review of previous work, I present some recent results obtained using the worldline formalism. In particular, I will discuss various ways of generalizing the QED Euler-Heisenberg Lagrangian to the Einstein-Maxwell case.
7 pages, talk given by C. Schubert at XIII Mexican School of Particles and Fields, San Carlos, Mexico, October 2-11, 2008