Password retrieval at SG is impossible! How aggravating to see posts saying I am gone, except not really!

Anyone with any ideas on deriving the laws of refraction and reflection and polarization states of refracted and reflected waves using Dirac spinors, finding lifetimes of excited states using...(gack) spherical tensors, or anything else really insightful in field theory or relativistic quantum mechanics...(especially stuff involving tensors), that ( Read more... )

Today is a good day! I think I shall celebrate with some tea.

Tea and Biscuits Brigade! Hurray!