10
votes
Accepted
Numerically solving radial Schrödinger equation with Yukawa potential
First, I think you have a sign error. The eigenvalues $\gamma^2$ being returned by the code will be proportional to $-E$ for the system, not $E$. This turns out to make a difference in what follows.
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- 15k
5
votes
Accepted
NDSolve ignores my NeumannValue boundary conditions
Your pde problem possesses the following NeumannValue's
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- 49.6k
5
votes
Accepted
Numerical solving diffusion equation in spherical coordinates
Change your boundary conditions to DirichletConditions
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4
votes
3
votes
Numerically solving radial Schrödinger equation with Yukawa potential
The problem seems to be, that the exponential decay cannotb be fixed at $x=100$. The minimal eigenvalue decreases with reduction of the interval.
Using the physical scaling of the Schrödinge operator
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- 2,887
3
votes
Accepted
Method of lines - Dirichlet and mixed BC
We can solve this problem using FDM and NDSolve as well to compare solutions. First code with FDM implementation
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- 42k
2
votes
Minimal surface bounded between turns of helix
Not an answer, just too big for a comment.
I cannot reproduce OP's problems with the "overminimization". With my orignial code from here I get the following results:
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1
vote
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