for any potential V this includes the one that provides the roots of the zeta function as its "energies" we can use the WKB approach so [tex]\psi=Exp(iW/\hbar)[/tex] (1){quote]
so we're assuming that V exists, why does V exists? anyway, V apparently exists so we can deduce the psi exists
then we take a look to our existence equation [tex]F(x,\psi)=AV(x)\psi+B\psi[/tex]
from equation (1) we would get that [tex]V(x)=c+d/(\psi)^{2}(\frac{d\psi}{dx})^{2}[/tex] then we know substitute our expresssion for the potential in F(x,y)...
[tex]F(x,\psi,d\psi/dx)=A(c\psi+d/(\psi)(\frac{d\psi}{dx})^{2})+B\psi[/tex]
now if we apply the existence theorem we would get that F and its partial derivative respect to [tex]\psi[/tex] are continuous (the WKB solution is never 0) so for any potential (including this that gives the zeros of Riemann zeta function) we get that the eigenfunctions exists.. and if [tex]\psi[/tex] exists also [tex]V(x)=(\hbar^{2}/2m)\frac{d^{2}\psi}{dx^{2}}+E_{n}[/tex] from SE equation...we have just proved that the functions exist..
so now youre concluding that since psi exists then V exists. but the only reaosn you thought V existed was because the psi exists.
see, that is circular.
so
1. why is there a V such that the spectrum of the differential operator is exactly the zeroes of the zeta function? you have not explained this. AGAIN.