What are the 3 challenging QM problems in FDR407?

[eit32]

3 Problems that i am struggling with are attached. FDR407

 

[eit32]

here it is as a PDF

 

[merryjman]

The only help I'll give here is for #2, for which I'm using Griffiths's excellent QM book (Chapter 2) as a reference. If you can get your hands on that book, buy it!

When you analyze the finite square well, after solving the Schrödinger equation, imposing boundary continuity conditions, and cleaning up the notation using a dummy variables "Z" and "Z0", you get an equation for Z that has tan(Z) on one side and sqrt{(Z0/Z)^2-1} on the other side. This can't be solved traditionally; the best you can do is plot both functions together and see where they intersect. That's why it's called a transcendental.

It looks like your teacher is giving you the hydrogen atom, since the mass of the electron is given, along with the traditional 1 angstrom distance from the nucleus.

 

[merryjman]

Note: Griffiths's text provides the even solutions, and you have to do the odd solutions, so your transcendental will be a bit different.

 

[droedujay]

What is the full name of that Textbook that you guys talking about

 

[merryjman]

"Introduction to Quantum Mechanics," David J. Griffiths, Prentrice Hall. Has a live cat on one cover and a dead cat on the other :)