Photon emission due to vacuum instability under the action of a quasi-constant electric field

Abstract

Following a nonperturbative formulation of strong-field QED developed in our earlier works, we consider photon emission accompanying vacuum instability under the action of a quasi-constant strong electric field of finite duration T. We construct closed formulas for the total probabilities and study the photon emission accompanying an electron-positron pair creation from a vacuum. We establish the domain of the applicability of the locally constant field approximation (LCFA) for the photon emission. We study angular and polarization distribution of the emission as well as emission characteristics in a high-frequency approximations with respect of 1/T. The results presented in this work is suitable to a further development of the LCFA proposed in [Phys. Rev. D 95, 076013 (2017)].

arXiv comment19 pages, accepted for publication in Theoretical and Mathematical Physics (Proceedings of the conference MQFT-2025), typos corrected

References in corpus (10)

• Advances in QED with intense background fields
• Vacuum instability in external fields
• An Addendum to the Heisenberg-Euler effective action beyond one loop
• Pair Production Beyond the Schwinger Formula in Time-Dependent Electric Fields
• Locally-constant field approximation in studies of electron-positron pair production in strong external fields
• Consistency restrictions on maximal electric field strength in QFT
• Vacuum instability in slowly varying electric fields
• The Heisenberg-Euler effective action in slowly varying electric field inhomogeneities of Lorentzian shape
• Role of switching-on and -off effects in the vacuum instability
• Photon emission in the graphene under the action of a quasiconstant external electric field