Physics 751 Homework #5 Due October 1, 11:00 am. 1. (a) For the finite square well potential V= 0 for x0, V= V0for 0 x< L, V= 0 for Lx, prove that the transmission amplitude S(k) for an electron coming in from the left with momentum kis 12211112( ),2cos()sinkkSkkkk L i kkk Lwhere k1is the momentum inside the well. Compare this with the transmission through a square barrierin http://www.phys.virginia.edu/classes/751.mf1i.fall02/OneDimSchr.htmand comment on the similarities and differences. (b) Sketch the probability of transmission carefully as a function of energy, or plot it with
This is the end of the preview. Sign up
access the rest of the document.
This note was uploaded on 12/07/2011 for the course PHYSICS 751 taught by Professor Michaelfowler during the Fall '07 term at UVA.