QED Effective Actions in Inhomogeneous Backgrounds: Summing the Derivative Expansion

Details QED Effective Actions in Inhomogeneous Backgrounds: Summing the Derivative Expansion QED Effective Actions in Inhomogeneous Backgrounds: Summing the Derivative Expansion

2000-11-07

arxiv.org/abs/hep-th/0011036v1

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, talk at QED2000, Trieste (October 2000)

Scientific paper

10.1063/1.1374991

The QED effective action encodes nonlinear interactions due to quantum vacuum polarization effects. While much is known for the special case of electrons in a constant electromagnetic field (the Euler-Heisenberg case), much less is known for inhomogeneous backgrounds. Such backgrounds are more relevant to experimental situations. One way to treat inhomogeneous backgrounds is the "derivative expansion", in which one formally expands around the soluble constant-field case. In this talk I use some recent exactly soluble inhomogeneous backgrounds to perform precision tests on the derivative expansion, to learn in what sense it converges or diverges. A closely related question is to find the exponential correction to Schwinger's pair-production formula for a constant electric field, when the electric background is inhomogeneous.

Affiliated with

Also associated with

No associations

Rating

QED Effective Actions in Inhomogeneous Backgrounds: Summing the Derivative Expansion does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with QED Effective Actions in Inhomogeneous Backgrounds: Summing the Derivative Expansion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and QED Effective Actions in Inhomogeneous Backgrounds: Summing the Derivative Expansion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-466038