Recent content by wraith

Awesome! Thanks for clearing that up. So is it equivalent to writing \nabla_{a}\nabla_{b} f_i \eta^{ab} Thanks, that was a horrible error on my part. I was getting two EM things confused while rushing to post. Fixed the things you mentioned in an edit. I will look into the Bogoliubov...

Hey all! I'm new to Physics Forums. I'm going through Hawking's famous 1975 paper "Particle Creation by Black Holes" which presents the phenomenon later known as Hawking radiation. I'm going through it for the sake of my own learning and benefit since the paper is a bit ahead of my edge as a...