Hiya guys, i have a quantum well in strange notation I have never seen before. I think i can do the question, i just need to know the shape of the well. If someone would be so kind to draw me a shape (I think its a step but not sure?). It is: dphi dphi -2m ---- minus ----- equals ----- . U . phi(0) dx x=0+ dx x=0- (h barred)^2 where V(x) = - U dirac delta function (x) and U is a postivie constant. x=0- and x= 0+ are positions immediately to the left and right of the origin. Thanks a bunch.