Speaker
Prof.
Sang Pyo Kim
(Kunsan National University)
Description
Background electromagnetic fields modify the Maxwell theory into nonlinear electrodynamics. Highly magnetized neutron stars and cosmic magnetic fields in the early universe receive QED loop corrections. Photons have multi-refringence and the polarization vectors carry information about the electromagnetic fields. The Maxwell theory in curved spacetimes, such as black holes and early universe, predicts non-trivial transportation. The physics of photon propagation will be addressed and possible observations will be discussed.
