Connecting inflation with late cosmic acceleration by particle production

Abstract

A continuous process of creation of particles is investigated as a possible connection between the inflationary stage with late cosmic acceleration. In this model, the inflationary era occurs due to a continuous and fast process of creation of relativistic particles, and the recent accelerating phase is driven by the non-relativistic matter creation from the gravitational field acting on the quantum vacuum, which finally results in an effective equation of state less than $-1$. Thus, explaining recent results in favor of a phantom dynamics without the need of any modifications in the gravity theory has been proposed. Finally, we confront the model with recent observational data of type Ia Supernova, history of the Hubble parameter, baryon acoustic oscillations, and the cosmic microwave background.

8 pages, 5 figures, Published version in International Journal of Modern Physics D

References in corpus (6)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Cosmological consequences of an adiabatic matter creation process
• Phantom behavior via cosmological creation of particles
• Gravitationally Induced Particle Production: Thermodynamics and Kinetic Theory
• Reconstruction of the Dark Energy equation of state
• Testing cosmic opacity from SNe Ia and Hubble parameter through three cosmological-model-independent methods

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• Dynamics in Varying vacuum Finsler-Randers Cosmology
• Two-fluid solutions of particle-creation cosmologies
• Cosmological solutions with gravitational particle production and non-zero curvature
• Gravitationally influenced particle creation models and late-time cosmic acceleration
• Gravitationally induced particle production and its impact on structure formation
• Cosmological solutions in spatially curved universes with adiabatic particle production
• Cosmology of the interacting Tsallis holographic dark energy in $f(R,T)$ gravity framework
• Interacting Holographic dark energy with matter creation: A dynamical system analysis
• Role of a periodic varying deceleration parameter in Particle creation with higher dimensional FLRW Universe
• Dynamical systems analysis of a cosmological model with interacting Umami Chaplygin fluid in adiabatic particle creation mechanism: Some bouncing features