2 papers
hep-th2025
Lessons from the Klein paradox
E. T. Akhmedov, D. V. Diakonov, V. I. Lapushkin +1
We re-examine the Klein paradox from a many-particle perspective in quantum field theory. Specifically, we compute the expectation value of the particle current induced by a suffic…
hep-th2024
Light fields in various patches of de Sitter space-time
E. T. Akhmedov, V. I. Lapushkin, D. I. Sadekov
We start with the consideration of the loop effects for light fields with non-zero mass in the expanding Poincaré patch of de Sitter space-time. We derive the Dyson-Schwinger equa…