could you jump to Matrix_mechanics#Harmonic_oscillator(adsbygoogle = window.adsbygoogle || []).push({});

I do not see why

"the matrix element Amn is the (m − n)th Fourier coefficient of the classical orbit, the matrix for A is nonzero only on the line just above the diagonal, where it is equal to √2En"

Where can i find this (m-n)th coefficient? in which serie?

thank you.

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# A question about Matrix Mechanics

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