Recent content by Penny

This is what i managed to do so far. I'm stuck with the perturbation terms on how to analyze them further so i can use S^2 or Sz that are already known. (sorry about the missing attempt at a solution, i wasn't aware)

Hi, I'm dealing with the following problem. I hope someone could help me with it. Problem is about 2 interacting particles (spin: 1/2 each), with Hamiltonian Ho=-A( S_1z + S_2z) and perturbation H1={(S_1x)*(S_2x) - (S_1y)*(S_2y)}. The question asks to calculate the energies of all 4 states up...