consider a quantum system with three states, and a hamiltonian given by 0 3 4 0, and hence we withe a small parameter and vo and η are constants. we now assume η have degenerate perturbation theory we must use. (a) write the eigenvalues e0 and eigenvectors in(0) of the unperturbed hamiltonian (に0) for n 1,2,3, in the same basis you used for this problem in homework #1. in 0 particular use 13) = 0 (b) find the first-order energy e due to the perturbation e. (c) find the first-order correction to the third eigenstate, namely find 13). (d) find the second-order correction to the third energy, namely find e) (e) find the two energies of the degenerate subspace due to the perturbation. (f) find the two eigenstates of the degenerate subspace due to the perturbation. make sure you label which eigenstate goes with which eigenvalue. (g) set vo = 1 and here η = 0.0. plot he three energies as a function ofe. in the plot, you need to decide how far to plot in e, since must be a small parameter. ph 6723 students only: except for the value of η, this is the same problem as homework #1, the difference is here η 0. in homework #1 you had η = 0.5. describe how to use perturbation theory, as well as the consequence of the small parameters, if one had η but η « i. in particular, make a plot of the energies from perturbation theory if η = 0.01 (and vo = 1).

object 2 because all the other ones are wrong

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