Foundations of Electromagnetism, Equivalence Principles and Cosmic Interactions

Understand

We look at the foundations of electromagnetism in this chapter of the "eletromagnetism" book.

• For doing this, after some review (constraints on photon mass etc.), we use two approaches.
• The first one is to formulate a Parametrized Post-Maxwellian framework to include QED corrections and a pseudoscalar photon interaction.
• We discuss various vacuum birefringence experiments - ongoing and proposed - to measure these parameters.