Dark Matter Chaotic Inflation in Light of BICEP2
  We propose an economical model in which a singlet Z$_2$-odd scalar field
accounts for the primordial inflation and the present dark matter abundance
simultaneously in the light of recent BICEP2 result. Interestingly, the
reheating temperature and the thermal dark matter abundance are closely
connected by the same interaction between the singlet scalar and the standard
model Higgs. In addition, the reheating temperature turns out to be quite high,
$T_\text{R} \gtrsim 10^{12}$ GeV, and hence the thermal leptogenesis is
compatible with this model. Therefore, it can be one of the simplest
cosmological scenarios.
