DrDu, thank you for the advice!
Indeed changing signs in the upper right (and corresponding lower left) block of H_a to make it hermitian does solve the problem with diagonalization. Therefore I double checked my formula for finding the interaction matrix elements and I found no error in it!
It...
Hi, everyone!
I would really appreciate your help with this one!
I've been looking at a simple problem, linearly polarized excitation scheme in a two-level atom, J_g=J_e=1. At first orientation of coordinate system is such that light is polarized along y direction and propogates in z...