An Effective Cosmological Constant From an Entropic Formulation of
  Gravity
  We use the ideas of entropic gravity to derive the FRW cosmological model and
show that for late time evolution we have an effective cosmological constant.
By using the first law of thermodynamics and the modified entropy area
relationship derived from the supersymmetric Wheeler-DeWitt equation of the
Schwarzschild black hole, we obtain modifications to the Friedmann equations
that in the late time regime gives an effective positive cosmological constant.
Therefore, this simple model can account for the dark energy component of the
universe by providing an entropic origin to the cosmological constant
$\Lambda$.
