Question

Part B (Advanced: grade +0,+I,+2) Use degenerate perturbation theory to compute the second order energy shifts if 2 Solve for the eigenvalues of the total Hamiltonian by exact diagonalization of the matrix. Compare the exact solution to the approximated one given by the perturbation theory, e.g. using a sketch of the energies as a function ofA, for different values of the inter-atomic detuning Δ-ah- a2. Identify the regime when the perturbation theory gives a good approximation?

sorry i have only this information.

Answer 1

staden ans tue sum ovr u is o te cuc element 여 the degen un ate spaee a n/them by olu s paee 어den A EH ED 12 whieh is the eigemvalue probem im the suo spaee. D for tte ethutive Hann . Iton, an Hett degenorale E Ho