Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-05-12
Phys.Rev. D72 (2005) 065001
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 8 figures; v2: minor corrections, PRD version
Scientific paper
10.1103/PhysRevD.72.065001
We employ the recently developed worldline numerics, which combines string-inspired field theory methods with Monte-Carlo techniques, to develop an algorithm for the computation of pair-production rates in scalar QED for inhomogeneous background fields. We test the algorithm with the classic Sauter potential, for which we compute the local production rate for the first time. Furthermore, we study the production rate for a superposition of a constant E field and a spatially oscillating field for various oscillation frequencies. Our results reveal that the approximation by a local derivative expansion fails already for frequencies small compared to the electron mass scale, whereas for strongly oscillating fields a derivative expansion for the averaged field represents an acceptable approximation. The worldline picture makes the nonlocal nature of pair production transparent and facilitates a profound understanding of this important quantum phenomenon.
Gies Holger
Klingmuller Klaus
No associations
LandOfFree
Pair production in inhomogeneous fields 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 Pair production in inhomogeneous fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pair production in inhomogeneous fields will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-162962