Is Emergent Universe a Consequence of Particle Creation Process?

Understand

A model of an emergent universe is formulated using the mechanism of particle creation.

• Here the universe is considered as a non-equilibrium thermodynamical system with dissipation due to particle creation mechanism.
• The universe is chosen as spatially flat FRW space-time and the cosmic substratum is chosen as perfect fluid with barotropic equation of state.
• Both first and second order deviations from equilibrium prescription is considered and it is found that the scenario of emergent universe is possible in both the cases.