V.P38 — QFT vacuum = refinement sum

QFT vacuum equals refinement sum: the QFT vacuum energy density at cutoff level n corresponds to rho_vac^QFT(n) ~ p^{3n} hbar c / (2 l_ref); at the Planck cutoff, this gives the 10^{120} discrepancy. The sum counts lattice modes, not physical energy.