Tiny question about potential wells

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Homework Help Overview

The discussion revolves around the properties of wave functions in one-dimensional potential wells, specifically the relationship between the energy levels and the number of maxima in the wave functions corresponding to those levels.

Discussion Character

  • Conceptual clarification, Exploratory

Approaches and Questions Raised

  • The original poster questions whether the number of maxima in the wave functions of energy levels corresponds directly to the quantum number of those levels. Participants discuss the concept of anti-nodes and maxima in relation to the quantum states.

Discussion Status

Some participants have provided clarifications regarding the relationship between the quantum number and the number of maxima in the wave functions. There is an ongoing exploration of terminology and understanding of the concepts involved.

Contextual Notes

One participant mentions an issue with viewing an image that is intended to illustrate the potential well, which may affect the clarity of the discussion.

Lisa...
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Is it true that, no matter what, the number of tops the wave functions of the energy levels in a one dimensional potential well (like the one shown below) have is the same as the number of that energy level? I.e. does in every well the wavefunction have 1 top in E1, 2 in E2, 3 in E3 etc?

Potentialwell.GIF
 
Last edited:
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Hi Lisa,

for a potential well it is true in general that the probability distributions for the eigenfunctions will have n anti-nodes where n is the quantum number that labels the states as well as the energies. I think this is what you mean by 'tops', as they will all be maxima. ie n = 1 has one maximum, n=2 has two and so forth.

ps i didn't look at the picture. either the link is broken or the computer I am on won't let me see it

gabe
 
Hey there!

Thanks a bunch for your quick reply! It feels good to know I finally begin to understand a bit of these potential wells... And btw: I'm terribly sorry 'bout the picture! I already thought something went wrong... Oh well here's it again if you want to see it:

Potentialwell.GIF


Lisa

Ps Yeah I did mean maxima of the sine :blushing: I just couldn't come up with the correct English word for it fast :D In the Netherlands we call them 'toppen' (that's why I wrote tops) or 'buiken' (which literally means bellies). Of course the word maxima is used too, but not quite often. Perhaps it has something to do with the (crown)prinses from Argentina whose name is Maxima... :biggrin:
 

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