One-loop quantum electrodynamic correction to the gravitational
  potentials on de Sitter spacetime
  We compute the one-loop photon contribution to the graviton self-energy on a
de Sitter background and use it to solve the linearized Einstein equation for a
point mass. Our results show that a comoving observer sees a logarithmic
spatial running Newton's constant. Equivalently, a static observer reports a
secular suppression of the Newtonian potential.
