Dark energy from gravitational corrections
  We study physics concerning the cosmological constant problem in the framework of effective field theory and suggest that a dominant part of dark energy can originate from gravitational corrections of vacuum energy, under the assumption that the classical gravitational fields do not couple to a large portion of the vacuum energy effectively, in spite of the coupling between graviton and matters at a microscopic level. Our speculation is excellent with terascale supersymmetry. 
Yugo Abe, Masaatsu Horikoshi and Yoshiharu Kawamura
hep-th astro-ph.CO gr-qc hep-ph