why all values constant?

for different values of n ,i got the fidelity 1,what is going wrong in this .

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[Mathieu NOE]

hello

looking what is happening here

fidelity(k) = abs(bra_nplus1 * psi_ket_out_norm).^2;

I found out that bra_nplus1 and psi_ket_out_norm vectors will always have only one non zero value at the same index position. the value at this index is either 1 or -1 so the product of the two vectors , once abs is applied , will always be one.

Only the position of the +1 / - 1 value inside those vectors vary with the loop index but the product will always give the same result (1)

[Mathieu NOE]

hello again

problem solved ?