Talk detail

Participant	Kim, Sang Pyo
Institution	Kunsan National University - Miryong-Dong - Kunsan - Jeollabuk-Do - South Korea

Session	SF3	Accepted		Order	Time
Talk	Oral abstract	Title	Perspective of Strong QED: Theory and Applications
Co-authors
Abstract	Historically the Heisenberg-Euler and Schwinger effective actions in a constant electromagnetic field have been well known and are characterized by the vacuum polarization and the vacuum persistence amplitude. In an electric field the Dirac sea is unstable against creation of charged particle pairs, for instance, the electron-positron pairs, which has been known as the Schwinger mechanism, a nonperturbative quantum effect. Since then many field theoretical methods have been introduced or developed. In this talk I will explain how the Schwinger-DeWitt in-out formalism works for nontrivial configurations of electromagnetic fields and/or constant curvature spacetime and then review possible observations or measurements in astrophysics and laser experiments.