Symmetries and conservation laws. Review of time-independent perturbation theory (degenerate and non-degenerate. Rayleigh-Schrodinger, Brillouin-Wigner and canonical perturbation theory; effective Hamiltonian derivation). Time-dependent perturbation theory (1st and 2nd order, adiabatic perturbation, Aharonov-Bohm effect). Fermi’s golden rule. Two-level systems. Emission and absorption of radiation (applications). Second quantization of electromagnetic field in free space; photons. Spontaneous emission and natural lifetime; Lamb shift. Elements of scattering theory. Introduction to the Dirac equation. [Offered: F] Prereq: PHYS 334 or AMATH 373; PHYS 364 or AMATH 351; PHYS 365 or (AMATH 332 and 353)
