A complete cosmic scenario from inflation to late time acceleration: Non-equilibrium thermodynamics in the context of particle creation

Abstract

The paper deals with the mechanism of particle creation in the framework of irreversible thermodynamics. The second order non-equilibrium thermodynamical prescription of Israel and Stewart has been presented with particle creation rate, treated as the dissipative effect. In the background of a flat FRW model, we assume the non-equilibrium thermodynamical process to be isentropic so that the entropy per particle does not change and consequently the dissipative pressure can be expressed linearly in terms of the particle creation rate. Here the dissipative pressure behaves as a dynamical variable having a non-linear inhomogeneous evolution equation and the entropy flow vector satisfies the second law of thermodynamics. Further, using the Friedmann equations and by proper choice of the particle creation rate as a function of the Hubble parameter, it is possible to show (separately) a transition from the inflationary phase to the radiation era and also from matter dominated era to late time acceleration. Also, in analogy to analytic continuation, it is possible to show a continuous cosmic evolution from inflation to late time acceleration by adjusting the parameters. It is found that in the de Sitter phase, the comoving entropy increases exponentially with time, keeping entropy per particle unchanged. Subsequently, the above cosmological scenarios has been described from field theoretic point of view by introducing a scalar field having self interacting potential. Finally, we make an attempt to show the cosmological phenomenon of particle creation as Hawking radiation, particularly during the inflationary era.

27 pages, 5 figures

Cited by in corpus (29)

• Variable Chaplygin gas cosmologies in f(R, T) gravity with particle creation
• Statefinder diagnostic for modified Chaplygin gas cosmology in f(R,T) gravity with particle creation
• Dynamical analysis of interacting dark energy model in the framework of particle creation mechanism
• Will there be future deceleration? A study of particle creation mechanism in non-equilibrium thermodynamics
• Cosmic evolution in f(T) gravity theory
• The Impact of Particle Production on Gravitational Baryogenesis
• Gravitationally Induced Particle Production and its Impact on the WIMP Abundance
• A generalized $\Lambda$CDM model with parameterized Hubble parameter in particle creation, viscous and $f(R)$ model framework
• Thermodynamic implications of the gravitationally induced particle creation scenario
• A Model of Emergent Universe in Inhomogeneous Space-Time
• Thermodynamic analysis of universes with the initial and final de-Sitter eras
• Dynamical Vacuum Compressibility of Space
• Homogeneous and Isotropic space-time, Modified torsion field and Complete cosmic scenario
• Does the particle creation mechanism favour the formation of a black hole or a naked singularity?
• Generalized Misner-Sharp energy in the generalized Rastall theory
• Particle Production and Universal Thermodynamics
• Evolving Cosmic Scenario in Modified Chaplygin Gas with Adiabatic Matter Creation
• Emergent Scenario in first and second order non-equilibrium thermodynamics and stability analysis
• Testing Lambert$W$ equation of state with observational Hubble parameter data
• The Lambert $W$ function: A newcomer in the Cosmology class?
• Cosmic scenarios in $f(R)$ gravity: a complete evolution
• Thermodynamics of the dissipative cosmic fluid and stability criteria
• Dynamical systems analysis of a cosmological model with interacting Umami Chaplygin fluid in adiabatic particle creation mechanism: Some bouncing features
• For a flat Universe, $C_P/C_V=-q$ : another coincidence in Cosmology?
• Growth of Perturbations using Lambert$W$ Equation of State
• Does diffusion mechanism favor the emergent scenario of the universe?
• The Effects of Spatial Curvature on Cosmic Evolution
• The Lambert $W$ equation of state in light of DESI BAO
• Evolution of primordial black holes in an adiabatic FLRW universe with gravitational particle creation