This week, please work on on HW1 parts 3 and 4. In part 3 the key problem is number 9, the 4-well problem. Please do really nice drawings of 12 states. Make it clear where zero is on the vertical axis and where the well edges are along the x axis. Use a ruler if you need it. Makes the wells equally spaced and identical in width. Show where the wave-function zero crossings are (nodes). Post lots of questions and comments, not here, but in the HW posts.
In part 4, don't get stuck on derivations or anything like that. Just get the answers anyway you can. The key things are the wave-functions -- being able to visualize, understand and use them. Understanding sp2 and sp3. Understanding degeneracy.
Thanks.
PS. I will work on some band-related HW problems to do next week.
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