Accelerated Expansion of the universe based on Particle Creation-Destruction Processes and Dark Energy in FLRW universes

Abstract

Particle creation has been considered as a possible justification for the accelerated expansion of the universe, obeying the second law of thermodynamics, together with the possible existence of Dark Energy. This paper introduces the possibility that the destruction of baryonic and/or dark matter particles also verifies the second law of thermodynamics thanks to a particle exchange with dark energy. General equations for the variation of the number of particles in accelerated universes have been obtained. Finally, a new model of the universe has been developed which predicts dark energy properties as well as particle exchange processes between dark energy and baryonic and/or dark matter.

11 pages, 2 figures

References in corpus (11)

• Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
• An Accelerating Cosmology Without Dark Energy
• A third alternative to explain recent observations: Future deceleration
• Cosmology, Thermodynamics and Matter Creation
• General treatment for dark energy thermodynamics
• Continuous matter creation and the acceleration of the universe: the growth of density fluctuations
• Symmetry relating Gravity with Antigravity: A possible resolution of the Cosmological Constant Problem?
• FRW Universe with Variable $G$ and $\Lambda$-Terms
• A comprehensive view of cosmological Dark Side
• Toward an invariant definition of repulsive gravity
• Concordance Cosmology with Particle Creation

Cited by in corpus (4)

• Polymer dynamics of isotropic universe in Ashtekar and in volume variables
• For a flat Universe, $C_P/C_V=-q$ : another coincidence in Cosmology?
• Cosmological scenario based on the particle creation and holographic equipartition
• Evolution of primordial black holes in an adiabatic FLRW universe with gravitational particle creation