38 citations · 223 across the 22 of their papers we have counts for
5 papers · 1 filter
The Exact WKB analysis and the Stokes phenomena of the Unruh effect and Hawking radiation
Seishi Enomoto, Tomohiro Matsuda
The physical observables of quantum theory can be described by perturbation theory, which is often given by diverging power series. This divergence is connected to the existence of…
The Exact WKB analysis for asymmetric scalar preheating
Seishi Enomoto, Tomohiro Matsuda
Using the exact WKB analysis of the higher-order differential equations, we analyze the asymmetry in dynamical particle production of a complex scalar field. The solution requires…
The Exact WKB and the Landau-Zener transition for asymmetry in cosmological particle production
Seishi Enomoto, Tomohiro Matsuda
Cosmological particle production by a time-dependent scalar field is common in cosmology. We focus on the mechanism of asymmetry production when interaction explicitly violates sym…
Duration of Classicality of an inhomogeneous quantum field with repulsive contact self-interactions
Ariel Arza, Sankha S. Chakrabarty, Seishi Enomoto +2
Quantum fields with large degeneracy are often approximated as classical fields. Here, we show how quantum and classical evolution of a highly degenerate quantum field with repulsi…
Baryogenesis with the Berry phase
Seishi Enomoto, Tomohiro Matsuda
The spontaneous baryogenesis scenario explains how a baryon asymmetry can develop while baryon violating interactions are still in thermal equilibrium. However, generation of the c…