Brane Constant-roll Inflation

Abstract

The scenario of constant-roll inflation in the frame of the RSII brane gravity model is considered. Based on the scenario, the smallness of the second slow-roll parameter is released and it is assumed as a constant which could be of the order of unity. Applying the Hamilton-Jacobi formalism, the constancy of the parameter gives a differential equation for the Hubble parameter which leads to an exact solution for the model. Reconsidering the perturbation equations we show there are some modified terms appearing in the amplitude of the scalar perturbations and in turn in the scalar spectral index and tensor-to-scalar ratio. Comparing the theoretical results of the model with observational data, the free parameters of the model are determined. Then, the consistency of the model with the swampland criteria is investigated for the obtained values of the free parameters. As the final step, the attractor behavior of the model is considered.

arXiv comment20 pages, 6 figures; Typos fixed; references added, accepted for publication in PRD

References in corpus (99)

• A Large Mass Hierarchy from a Small Extra Dimension
• The Hierarchy Problem and New Dimensions at a Millimeter
• Planck 2013 results. XXII. Constraints on inflation
• Non-conventional cosmology from a brane-universe
• Accelerated expansion of the universe driven by tachyonic matter
• Brane cosmological evolution in a bulk with cosmological constant
• Brane-World Gravity
• Warm Inflation
• Distance and de Sitter Conjectures on the Swampland
• Formalising the Slow-Roll Approximation in Inflation
• BICEP2 / Keck Array VI: Improved Constraints On Cosmology and Foregrounds When Adding 95 GHz Data From Keck Array
• Chaotic inflation on the brane
• De Sitter Space and the Swampland
• Bounds on Slow Roll and the de Sitter Swampland
• Horizon crossing and inflation with large η
• Hunting for extra dimensions in the shadow of M87*
• Power-Law Inflation from the Rolling Tachyon
• Scalar perturbation spectra from warm inflation
• Violation of non-Gaussianity consistency relation in a single field inflationary model
• Inflation from a Tachyon Fluid?
• Brane World Cosmology
• Warm Inflation in the Adiabatic Regime- a Model, an Existence Proof for Inflationary Dynamics in Quantum Field Theory
• Gravitational waves from inflation on the brane
• Inflation with a constant rate of roll
• Silhouette of M87*: A new window to peek into the world of hidden dimensions
• Perturbation Spectra in the Warm Inflationary Scenario
• Inflation, braneworlds and quintessence
• Brane cosmology driven by the rolling tachyon
• Planck 2018 results. IX. Constraints on primordial non-Gaussianity
• Limits on the number of spacetime dimensions from GW170817
• Unification of Constant-roll Inflation and Dark Energy with Logarithmic $R^2$-corrected and Exponential $F(R)$ Gravity
• Brane-world extra dimensions in light of GW170817
• A Hamilton-Jacobi approach to non-slow-roll inflation
• The zoo plot meets the swampland: mutual (in)consistency of single-field inflation, string conjectures, and cosmological data
• Inflation and the Theory of Cosmological Perturbations
• A note on Inflation and the Swampland
• Warm Inflation in the light of Swampland Criteria
• Constant-roll Inflation in $f(T)$ Teleparallel Gravity
• $f(R)$ constant-roll inflation
• Constant-roll Inflation in $F(R)$ Gravity
• Refining inflation using non-canonical scalars
• Eternal Inflation and the Refined Swampland Conjecture
• Inflationary Attractor from Tachyonic Matter
• Eternal Inflation and Swampland Conjectures
• The inflationary universe in F(R) gravity with antisymmetric tensor fields and their suppression during the universe evolution
• Constant-Roll (Quasi-)Linear Inflation
• Systematics of Constant Roll Inflation
• Steep Eternal Inflation and the Swampland
• Inflation with a Smooth Constant-Roll to Constant-Roll Era Transition
• Determining the regimes of cold and warm inflation in the susy hybrid model
• Inflationary Dynamics with a Smooth Slow-Roll to Constant-Roll Era Transition
• Large-$\eta$ Constant-Roll Inflation Is Never An Attractor
• Constant-roll inflation in scalar-tensor gravity
• Reheating in Constant-roll $F(R)$ Gravity
• Constant-roll tachyon inflation and observational constraints
• New perspectives on constant-roll inflation
• Constraining extra-spatial dimensions with observations of GW170817
• Intermediate inflation from a non-canonical scalar field
• Type I Hilltop Inflation and the Refined Swampland Criteria
• On Power Law Inflation in DBI Models
• Constraining chameleon field driven warm inflation with Planck 2018 data
• Tachyon constant-roll inflation
• Hamilton-Jacobi formalism to warm inflationary scenario
• Constant-roll in the Palatini-$R^2$ models
• Primordial Anisotropies in Gauged Hybrid Inflation
• Dynamical Analysis of Attractor Behavior in Constant Roll Inflation
• Constant-roll approach to non-canonical inflation
• Hamilton-Jacobi Formalism for Tachyon Inflation
• Stability analysis of inflation with an SU(2) gauge field
• Anisotropic inflation in Brans-Dicke gravity
• Hamilton-Jacobi formalism for inflation with non-minimal derivative coupling
• Constant-roll $k$-Inflation Dynamics
• Constraints on holographic multi-field inflation and models based on the Hamilton-Jacobi formalism
• Initial Conditions for Non-Canonical Inflation
• Brane inflation driven by noncanonical scalar field
• Slow roll in simple non-canonical inflation
• Intermediate inflation driven by DBI scalar field
• Inflationary potentials in DBI models
• A Potential Mechanism for Inflation from Swampland Conjectures
• Dynamics of Gauge Field Inflation
• Beta-function formalism for k-essence constant-roll inflation
• Inflationary predictions in scalar-tensor DBI inflation
• Viscous Warm Inflation: Hamilton-Jacobi formalism
• Relations between canonical and non-canonical inflation
• A Smooth Constant-Roll to a Slow-Roll Modular Inflation Transition
• Observational constraints on DBI constant-roll inflation
• Light of Planck-2015 on Non-Canonical Inflation
• Resurrecting the Power-law, Intermediate, and Logamediate Inflations in the DBI Scenario with Constant Sound Speed
• Signatures of microscopic black holes and extra dimensions at future neutrino telescopes
• Brane Cosmology with the Chameleon Scalar Field in Bulk
• Non-canonical inflation coupled to matter
• Planck Limits on Non-canonical Generalizations of Large-field Inflation Models
• Quark-hadron phase transition in a chameleon Brans-Dicke model of brane gravity
• Resurrecting the exponential and inverse power-law potentials in non-canonical inflation
• Dynamical suppression of spacetime torsion
• Gravitational waves in braneworlds after multi-messenger events
• Brane World Cosmology, the CMB and the Radion
• Brane Cosmology With Generalized Chaplygin Gas in The Bulk
• Natural Inflation on the brane with a TeV-scale gravity: Parameter constraints after Planck 2015

Cited by in corpus (18)

• Tsallis holographic dark energy for inflation
• Brane inflation and Trans-Planckian censorship conjecture
• Large-scale gauge spectra and pseudoscalar couplings
• Gauss-Bonnet inflation with a constant rate of roll
• Holographic warm inflation
• Effective field theories and inflationary magnetogenesis
• Tsallis holographic inflation in $f(R,T)$ gravity: CMB constraints, reheating, and swampland implications
• The refractive index of the relic gravitons and the nHz band
• Analytical Insights into Constant-Roll Condition: Extending the Paradigm to Non-Canonical Models
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• Relic gravitons and pulsar timing arrays: a theoretical viewpoint
• Constant-roll inflation with tachyon field in the holographic braneworld
• Flat spectra of cosmic gravitons in the nHz and audio bands
• On the origin of matter-antimatter asymmetry in the Universe
• Constant-roll inflation and primordial black holes within Barrow entropic framework
• Tachyon constant-roll inflation in Randall-Sundrum II cosmology
• Hamilton-Jacobi analysis of noncanonical inflation in $f(R,T)$ gravity: Constraints from Planck/ACT data, and theoretical bounds
• Relic gravitons at intermediate frequencies and the expansion history of the Universe