Tachyon inflation in the holographic braneworld

Abstract

A model of tachyon inflation is proposed in the framework of holographic cosmology. The model is based on a holographic braneworld scenario with a D3-brane located at the holographic boundary of an asymptotic ADS${}_5$ bulk. The tachyon field that drives inflation is represented by a DBI action on the brane. We solve the evolution equations analytically in the slow-roll regime and solve the exact equations numerically. We calculate the inflation parameters and compare the results with Planck 2018 data.

27 pages 6 figures, substantially revised version accepted for publication in JCAP. A comment on primordial non-Gaussianity added, an appendix on cosmological perturbations added, a minor mistake in the equation for spectral density corrected resulting in slight modifications of the plots, 7 references added, typos corrected

References in corpus (42)

• An Alternative to Compactification
• Holographic Reconstruction of Spacetime and Renormalization in the AdS/CFT Correspondence
• Perturbations in k-inflation
• Observational Signatures and Non-Gaussianities of General Single Field Inflation
• Scalar Speed Limits and Cosmology: Acceleration from D-cceleration
• Field Theory of Tachyon Matter
• Planck 2015 results. XVII. Constraints on primordial non-Gaussianity
• Supersymmetric World-volume Action for Non-BPS D-branes
• Power-Law Inflation from the Rolling Tachyon
• Prospects and Problems of Tachyon Matter Cosmology
• Inflation from a Tachyon Fluid?
• Brane New World
• Aspects of Tachyonic Inflation with Exponential Potential
• Higher order corrections to primordial spectra from cosmological inflation
• Thoughts on Tachyon Cosmology
• Problems with Tachyon Inflation
• Cosmological perturbations in a generalized gravity including tachyonic condensation
• Cosmological Constraints on Tachyon Matter
• Gravity in Warped Compactifications and the Holographic Stress Tensor
• Tachyon inflation: tests and comparison with single scalar field inflation
• Reheating from Tachyon Condensation
• Rolling Tachyon in Brane World Cosmology from Superstring Field Theory
• Holography and Brane-bulk Energy Exchange
• Universality classes for models of inflation
• Cosmology from an AdS Schwarzschild black hole via holography
• Tachyon Field in Intermediate Inflation
• Non-minimally Coupled Tachyonic Inflation in Warped String Background
• Asymptotic freedom, asymptotic flatness and cosmology
• AdS/CFT correspondence in cosmology
• Randall-Sundrum versus holographic cosmology
• Approach to exact inflation in modified Friedmann equation
• Tachyon inflation with steep potentials
• Observational constraints on tachyon and DBI inflation
• Generalized modified gravity with the second order acceleration equation
• Reheating constraints on Tachyon Inflation
• A de Sitter tachyonic braneworld revisited
• Tachyon with an inverse power-law potential in a braneworld cosmology
• Tachyon inflation in an AdS braneworld with back-reaction
• Non-Gaussianity in multi-sound-speed disformally coupled inflation
• Particle creation and reheating in a braneworld inflationary scenario
• Holographic cosmology and tachyon inflation
• Monopoles on string-like models and the Coulomb's law

Cited by in corpus (12)

• Quintessential Inflation with Dynamical Higgs Generation as an Affine Gravity
• Dynamically Generated Inflationary Lambda-CDM
• New Cosmological Solutions of a Nonlocal Gravity Model
• Rejuvenating the hope of a swampland consistent inflated multiverse with tachyonic inflation in the high energy RS-II Braneworld
• Primordial perturbations and inflation in holographic cosmology
• Viable Anisotropic Inflation and Reheating in the Tachyon Model
• Intermediate and Power-Law Inflation in the Tachyon Model with Constant Sound Speed
• A scaling invariance of the perturbations in $k$-inflation models
• Constant-roll inflation with tachyon field in the holographic braneworld
• Primordial perturbations and inflation in a holography inspired Gauss-Bonnet cosmology
• Tachyon constant-roll inflation in Randall-Sundrum II cosmology
• Primordial black hole formation in k-inflation models