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Time-independent 2D Schrodinger equation with non separable potential

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Thibaut Jacqmin
Thibaut Jacqmin on 21 Mar 2013
Answered: Laurent NEVOU on 15 Jan 2018
I would like to solve the time-independent 2D Schrodinger equation for a non separable potential using exact diagonalization. I understand I need to rewrite the problem so that the wavefunction which is a 2xN matrix is a 1xN² matrix so that the problem reduces to the diagonalization of a N²xN² hamiltonian. My question is : how should I use the meshgrid and del2 functions to define the laplacian part of the hamiltonian, and how should I write the matrix potential (say I have a function V(x, y) for the potential, how do I get the matrix potential in the rewritten problem ? And finally, how do get the eigenstates and eigenenergies of the initial problem ?
Thanks a lot

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Answers (3)

Raul Lozano
Raul Lozano on 8 May 2013
I would like to know this too. I see on Youtube that Greenville College has a project where they solve Schrodinger's equation using Wavelets. Your help with pointers to be able to do this with Matlab will greatly be appreciated.
Regards and thanks.

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Laurent NEVOU
Laurent NEVOU on 15 Jan 2018
Look here:
https://github.com/LaurentNevou/Schrodinger2D_demo

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