Effective Action and Schwinger Pair Production in Strong QED
Sang Pyo Kim (Kunsan Natl Univ.)
TL;DR
This paper reviews key field theoretical concepts like the effective action and Schwinger pair production in strong QED, discussing boundary conditions, gauge choices, and spin-statistics relations.
Contribution
It provides a critical review of the effective action and pair production in strong QED, highlighting the impact of boundary conditions and gauge choices on theoretical results.
Findings
Boundary conditions affect the effective action calculations.
WKB approximation works differently for bosons and fermions.
Discussion of spin-statistics inversion in pair production.
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.
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