Gravitational reheating in quintessential inflation

Abstract

We provide a detailed study of gravitational reheating in quintessential inflation generalizing previous analyses only available for the standard case when inflation is followed by an era dominated by the energy density of radiation. Quintessential inflation assumes a common origin for inflation and the dark energy of the Universe. In this scenario reheating can occur through gravitational particle production during the inflation-kination transition. We calculate numerically the amount of the radiation energy density, and determine the temperature $T_{\ast }$ at which radiation starts dominating over kination. The value of $T_{\ast }$ is controlled by the Hubble parameter $H_0$ during inflation and the transition time $\Delta t$, scaling as $H_0^2[\ln (1/H_0\Delta t){]}^{3/4}$ for $H_0\Delta t\ll 1$ and $H_0^2(H_0\Delta t{)}^{-c}$ for $H_0\Delta t\gg 1$. The model-dependent parameter $c$ is found to be around 0.5 in two different parametrizations for the transition between inflation and kination.

12 pages, 5 figures

References in corpus (23)

• Cosmological Imprint of an Energy Component with General Equation of State
• Observation of an anomalous positron abundance in the cosmic radiation
• Particle Physics Models of Inflation and the Cosmological Density Perturbation
• Cosmological Tracking Solutions
• Quintessential inflation
• Deflationary Universe Scenario
• Quintessence and the Relic Density of Neutralinos
• Relic Gravity Waves from Braneworld Inflation
• Inflation and Preheating in NO models
• Inflation, braneworlds and quintessence
• SUSY Dark Matter and Quintessence
• Turning Around the Sphaleron Bound: Electroweak Baryogenesis in an Alternative Post-inflationary Cosmology
• Modeling Quintessential Inflation
• Reheating After Quintessential Inflation and Gravitational Waves
• Curvaton Reheating in Non-oscillatory Inflationary Models
• From brane assisted inflation to quintessence through a single scalar field
• Quintessential Enhancement of Dark Matter Abundance
• Quintessential Kination and Cold Dark Matter Abundance
• On the Construction of Quintessential Inflation Models
• Inflationary Cosmology Connecting Dark Energy and Dark Matter
• Connecting LHC, ILC, and Quintessence
• Colliders as a simultaneous probe of supersymmetric dark matter and Terascale cosmology
• Quintessential Kination and Leptogenesis

Cited by in corpus (38)

• Dark energy, $\alpha$-attractors, and large-scale structure surveys
• Quintessential Inflation with $\alpha$-attractors
• Variable gravity: A suitable framework for quintessential inflation
• Emergent scale symmetry: Connecting inflation and dark energy
• Instant Preheating in Quintessential Inflation with $\alpha$-Attractors
• Quintessential inflation with canonical and noncanonical scalar fields and Planck 2015 results
• Unification of inflation and dark energy {\it à la} quintessential inflation
• Non-minimal gravitational reheating during kination
• PBH remnants as dark matter produced in thermal, matter and runaway-quintessence post-inflationary scenarios
• Quintessential inflation in Palatini $f(R)$ gravity
• Palatini $R^2$ Quintessential Inflation
• Quintessential inflation: A tale of emergent and broken symmetries
• On exact solutions for quintessential (inflationary) cosmological models with exponential potentials
• Minimal $k$-inflation in light of the conformal metric-affine geometry
• Signatures of Non-thermal Dark Matter with Kination and Early Matter Domination: Gravitational Waves versus Laboratory Searches
• Beyond the Poles in Attractor Models of Inflation
• The paradigm of warm quintessential inflation and spontaneous baryogenesis
• Quintessential inflation with a trap and axionic dark matter
• Enhanced primordial gravitational waves from a stiff post-inflationary era due to an oscillating inflaton
• DESI constraints on $\alpha$-attractor inflationary models
• Reheating via gravitational particle production in kination epoch
• Observable Primordial Gravitational Waves from Non-minimally Coupled $R^2$ Palatini Modified Gravity
• Violation of slow-roll in non-minimal inflation
• Reheating the D-brane universe via instant preheating
• Stability analysis of warm quintessential dark energy model
• Cosmological Imprints of SUSY Breaking in Models of Sgoldstinoless Non-Oscillatory Inflation
• Minimal dark matter in type III seesaw
• Gauge Field Production and Schwinger Reheating in Runaway Axion Inflation
• Constraining the quintessential $\alpha$-attractor inflation through dynamical horizon exit method
• Thermodynamics of the Primordial Universe
• Reassessing constant-roll Warm Inflation
• Witten-O'Raifeartaigh potential revisited in the context of Warm Inflation
• Pure Natural Quintessential Inflation and Dark Energy
• Reheating in the kination epoch via multi-channel decay of gravitationally created massive scalars
• Spontaneous baryogenesis and generation of gravitational waves in a new model of quintessential $\alpha$-attractor
• Complementary signatures of $\alpha -$attractor inflation in CMB and cosmic string Gravitational Waves
• Quintessential Inflation in Palatini $F(R,X)$ gravity
• Modelling Quintessential Inflation in Palatini Modified Gravity