Recent content by Someone88
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Finite potential well- well's depth?
I've made some progress, but I have another question. In one example I've seen that Hbar= 197,3 eV nm. Is this correct? Is there a connection between well's length L and hbar?- Someone88
- Post #12
- Forum: Advanced Physics Homework Help
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Finite potential well- well's depth?
I started all over again with a different approach and in the end I've got: \frac{2\sqrt{E(V-E)}}{2E-V}=tan(\sqrt{\frac{2m*E*L^2}{hbar^2}}) Now, I have to plot left and right side of the equation, and look for the intersections, right? I'll try to guess value of V, so that there are only...- Someone88
- Post #10
- Forum: Advanced Physics Homework Help
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Finite potential well- well's depth?
Can I shift potential well so that the center is in x=0? Does this make any difference? I've found some examples of finite potential well, but in every of them well goes from -L/2 to L/2. Mine, however, goes from 0 to L, and when I insert boundary values in equations and derivations, I get...- Someone88
- Post #8
- Forum: Advanced Physics Homework Help
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Finite potential well- well's depth?
I know I probably ask too much, but can you solve this part for me, because I really don't understand it. It is very important for me...- Someone88
- Post #7
- Forum: Advanced Physics Homework Help
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Finite potential well- well's depth?
Can you please explain this part in detail, because I don't understand it very well. How am I suppossed to solve these equations? I can draw them, but what then? If you have another way of solving this problem, without these equations I've got (which seem very complicated to solve), I would...- Someone88
- Post #5
- Forum: Advanced Physics Homework Help
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Finite potential well- well's depth?
I'll start from the beginning. Equation for the area: x<0 Ψ(x)= Cexp(αx) 0<x<L Ψ(x)= Asinkx+Bcoskx x>L Ψ(x)= Fexp(-αx) For boundary values (0, L), when I equalize equations and their derivations I get: C=B Cα=Ak AsinkL+BcoskL=Fexp(-αL) A*k*coskL-B*k*sinkL= -α*Fexp(-αL) So...- Someone88
- Post #3
- Forum: Advanced Physics Homework Help
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Finite potential well- well's depth?
Homework Statement The problem is to find a well's depth Vo that the electron which is trapped inside has two stable states. Well starts at x=0 and ends at x=L. Homework Equations The Attempt at a Solution I tried to solve Schrödinger equation for each area (x<0 0<x<L x>L) but...- Someone88
- Thread
- Depth Finite Potential Potential well
- Replies: 12
- Forum: Advanced Physics Homework Help