2017/12/22 by Greger Torgrimsson, Christian Schneider, Ralf Schützhold · 3 citations
Mathematics · Physics and Astronomy · #Electric field #Geometry #Instanton #Laser-Plasma Interactions and Diagnostics #Line (geometry) #Mathematical analysis #Mathematics #Perpendicular #Physics #Plane (geometry) #Plane wave #Pulsars and Gravitational Waves Research #Quantum and Classical Electrodynamics #Quantum electrodynamics #Quantum mechanics #Transversal (combinatorics) #hep-ph
paper · pdf · doi:10.1103/physrevd.97.096004
published as Phys. Rev. D 97, 096004 (2018) · 8 pages, 4 figures
arxiv created 2017/12/22 · openalex publication_date 2018/05/07 · arxiv updated 2018/05/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study electron-positron pair creation by a strong and constant electric field superimposed with a weaker transversal plane wave which is incident perpendicularly (or under some angle). Comparing the fully nonperturbative approach based on the world-line instanton method with a perturbative expansion into powers of the strength of the weaker plane wave, we find good agreement---provided that the latter is carried out to sufficiently high orders. As usual for the dynamically assisted Sauter-Schwinger effect, the additional plane wave induces an exponential enhancement of the pair-creation probability if the combined Keldysh parameter exceeds a certain threshold.