Electroweak relaxation of cosmological hierarchy
  A simple model for the late-time cosmic acceleration problem is presented in
the Starobinsky inflation with a negative bare cosmological constant as well as
a nonminimal coupling to the Higgs boson. After electroweak symmetry breaking,
the Starobinsky inflaton has been frozen until very recently, becoming a
thawing quintessence, and a comparable magnitude to the observed dark energy
density can be achieved without fine-tuning. Our proposal essentially reduces
the cosmological constant problem into the electroweak hierarchy problem, and
its late-time behaviour is also consistent with the recently proposed swampland
criteria.
