Effective Action and Schwinger Pair Production in Strong QED
arXiv:0902.3486 · doi:10.1063/1.3192303
Abstract
Some field theoretical aspects, such as the effective action and Schwinger pair production, are critically reviewed in strong QED. The difference of the boundary conditions on the solutions of the field equation is discussed to result in the effective action both in the Coulomb and time-dependent gauge. Finally, the apparent spin-statistics inversion is also discussed, where the WKB action for bosons (fermions) works well for fermion (boson) pair-production rate.
LaTex 6 pages, no fingure; Invited Talk at IMFP 2009, Malaysia, Jan. 12-16, 2009; typos in signs of eqs and one reference corrected