Hi. I've been trying to understand the phenomenon of step potential, when energy of particle E is higher than the potential V. Then we have solution on both sides of boundary in the form of wave functions.... Is the reflection coefficient in this case simply (E-V)/E ?? Can anyone show me a more formal explanation, however not as formal as in books (so that i understand :) What does the quantum mechanical coefficient really tell us (in comparison with classical thinking)? If we think about it classically I think we can be sure that particle gets transmitted at boundary, but loses some energy. From the QM point of view, on the other hand I guess we have a probability that particle gets reflected? Please tell me if my reasoning is correct:) cheers!