Advanced Quantum Mechanics II

This is the graduate sequel where quantum mechanics stops being about solving the hydrogen atom and starts being about handling everything you can't solve exactly: perturbative expansions, scattering amplitudes, open systems leaking into an environment, and many-body states where permutation symmetry forces you into second quantization. Expect problem sets that grind through Born approximations, partial-wave phase shifts, and variational ansätze like Hartree-Fock, plus two midterms and a final built around the Sakurai/Merzbacher canon. It assumes you've already digested PHYS 543 and gives you the working machinery needed for quantum field theory, condensed matter, and quantum information courses downstream.