Gravitationally induced adiabatic particle production: From Big Bang to de Sitter

Abstract

In the background of a flat homogeneous and isotropic space-time, we consider a scenario of the universe driven by the gravitationally induced `adiabatic' particle production with constant creation rate. We have shown that this universe attains a big bang singularity in the past and at late-time it asymptotically becomes de Sitter. To clarify this model universe, we perform a dynamical analysis and found that the universe attains a thermodynamic equilibrium in this late de Sitter phase. Finally, for the first time, we have discussed the possible effects of `adiabatic' particle creations in the context of Loop Quantum Cosmology.

11 pages, 2 figures, Published version in Classical and Quantum Gravity

References in corpus (9)

• Dynamics of dark energy
• Non-Singular Bouncing Universes in Loop Quantum Cosmology
• Loop cosmological dynamics and dualities with Randall-Sundrum braneworlds
• Cosmological consequences of an adiabatic matter creation process
• Is Emergent Universe a Consequence of Particle Creation Process?
• Entropy evolution of universes with initial and final de Sitter eras
• Gravitationally Induced Particle Production: Thermodynamics and Kinetic Theory
• Phantom behavior via cosmological creation of particles
• Connecting inflation with late cosmic acceleration by particle production

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