Speaker
Yuriy Selivanov
Description
The cutting technique for Feynman diagrams is a powerful tool for extracting implications of unitarity. It is widely used and referred to in various areas of quantum field theory, including strong-field QED. However, to the best of our knowledge, no proof of the cutting technique in the presence of a classical background field has been published. In our presentation, we follow M. Veltman's original proof for self-acting scalar field theory and extend it to strong-field QED with a stable vacuum. We also demonstrate the cutting equation on the example of the second-order trident pair creation process and discuss prospects of it's future applications to non-perturbative strong-field QED.
Primary authors
Yuriy Selivanov
Dr.
Alexander Fedotov
(NRNU MEPhI)
Dr.
Arseny Mironov
(CPHT, CNRS, Ecole polytechnique, Institut Polytechnique de Paris)
