Worldline instantons for the momentum spectrum of Schwinger pair production in spacetime dependent fields
العنوان: | Worldline instantons for the momentum spectrum of Schwinger pair production in spacetime dependent fields |
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المؤلفون: | Gianluca Degli Esposti, Greger Torgrimsson |
المصدر: | Physical Review |
بيانات النشر: | APS, 2023. |
سنة النشر: | 2023 |
مصطلحات موضوعية: | High Energy Physics - Theory, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Astronomi, astrofysik och kosmologi, High Energy Physics - Theory (hep-th), Astronomy, Astrophysics and Cosmology, FOS: Physical sciences |
الوصف: | We show how to use the worldline-instanton formalism to calculate the momentum spectrum of the electron-positron pairs produced by an electric field that depends on both space and time. Using the LSZ reduction formula with a worldline representation for the propagator in a spacetime field, we make use of the saddle-point method to obtain a semiclassical approximation of the pair-production spectrum. In order to check the final result, we integrate the spectrum and compare with the results obtained using a previous instanton method for the imaginary part of the effective action. Comment: 16 pages, 9 figures |
وصف الملف: | application/pdf |
اللغة: | English |
URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e91545f548d06c6b1757d68766754343 http://repo.scoap3.org/api |
حقوق: | OPEN |
رقم الأكسشن: | edsair.doi.dedup.....e91545f548d06c6b1757d68766754343 |
قاعدة البيانات: | OpenAIRE |
الوصف غير متاح. |