Homework Problems 14-17 (pert. theory...) and comments

This includes a reposting of problem 14, which supercedes (replaces) the previous post, as well as problems 15, 16 and 17.

Please keep all your homework, after you get it back, in a sequential Homework portfolio, which you or I will be able to examine at any point in the quarter.

For problem 14 try to think about and address the question of the crossover energy scale (e). This can be meaningfully addressed from examining your equations from part a) without necessarily doing any numerical work. You may not be so sure, without numerical solutions, but you can still offer your best ideas about what the crossover scale is likely to be (in terms of a comparison of two (competing) energy scales.)

Brief notes on prob's 1-5

Here are some brief notes on problems 1-5. They mention the discontinuities in the first derivative, and consequent delta functions in the 2nd derivative of Psi, that come up in the T calc's for infinite potentials (sq well and delta function).

A technical question: For web page organization (to avoid post sprawl), I would have rather posted ths as a comment (to the HW 1 post), but i didn't see how to upload an image within a comment. Can I do that? Any advice?