Cosmological solutions in spatially curved universes with adiabatic   particle production
  We perform a qualitative and thermodynamic study of two models when one takes into account adiabatic particle production. In the first one, there is a constant particle production rate, which leads to solutions depicting the current cosmic acceleration but without inflation. The other one has solutions that unify the early and late time acceleration. These solutions converge asymptotically to the thermal equilibrium. 
Llibert Arest\'e Sal\'o and Jaume de Haro
gr-qc