Homework Statement
Can someone tell me how to Fourier transform this quantity:
\Sigma (x_(j+1) - x_j)^2
where the sum is from j=1 to N
Homework Equations
Define the Fourier transform as
x_j = \Sigma A_k *exp(-iqkj)
**Where i is sqrt(-1)
**The Sum is from k=0 to (N-1)
**q =...
Of course not. The limitation isn't that of the theory, in this case. The limitation is on us. We can't know the positions and momentum of every particle in the universe. It's a matter of data, not theory.