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Greetings!

I have a 3d material and I use result from first principal for getting the potential (U(x,y,z)). I then find average U(x) from U(x,y,z). Now if I write one dimensional Hamiltonian in X direction and use this value of U(x), can I get bandgap of the original 3d material (I am not interested to see the bandstructure, bandgap is what I need)

Thanks,

_Arya

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# Can I get Bandgap of 3D material with 1D Hamiltonian

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