Inflation and dark energy arising from geometrical tachyons
arXiv:hep-th/0510112 · doi:10.1103/PhysRevD.73.023515
Abstract
We study the motion of a BPS D3-brane in the NS5-brane ring background. The radion field becomes tachyonic in this geometrical set up. We investigate the potential of this geometrical tachyon in the cosmological scenario for inflation as well as dark energy. We evaluate the spectra of scalar and tensor perturbations generated during tachyon inflation and show that this model is compatible with recent observations of Cosmic Microwave Background (CMB) due to an extra freedom of the number of NS5-branes. It is not possible to explain the origin of both inflation and dark energy by using a single tachyon field, since the energy density at the potential minimum is not negligibly small because of the amplitude of scalar perturbations set by CMB anisotropies. However geometrical tachyon can account for dark energy when the number of NS5-branes is large, provided that inflation is realized by another scalar field.
arXiv comment11 pages, 8 figures
References in corpus (83)
- Cosmological parameters from SDSS and WMAP
- Rolling Tachyon
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Implications for Inflation
- Tachyon Matter
- Cosmological parameter analysis including SDSS Ly-alpha forest and galaxy bias: constraints on the primordial spectrum of fluctuations, neutrino mass, and dark energy
- Accelerated expansion of the universe driven by tachyonic matter
- Field Theory of Tachyon Matter
- Cosmological Evolution of the Rolling Tachyon
- Cosmology with tachyon field as dark energy
- The Inflationary Brane-Antibrane Universe
- Tachyon Dynamics in Open String Theory
- Supersymmetric World-volume Action for Non-BPS D-branes
- T-duality and Actions for Non-BPS D-branes
- Tachyons, Scalar Fields and Cosmology
- Extended tachyon field, Chaplygin gas and solvable k-essence cosmologies
- Tachyon couplings on non-BPS D-branes and Dirac-Born-Infeld action
- Power-Law Inflation from the Rolling Tachyon
- Assisted inflation via tachyon condensation
- Prospects and Problems of Tachyon Matter Cosmology
- Inflation from a Tachyon Fluid?
- Proposal for non-BPS D-brane action
- What is needed of a tachyon if it is to be the dark energy?
- Aspects of Tachyonic Inflation with Exponential Potential
- Coupled dark energy: Towards a general description of the dynamics
- Crossing of the w=-1 Barrier by D3-brane Dark Energy Model
- Effective equation of state and energy conditions in phantom/tachyon inflationary cosmology perturbed by quantum effects
- Thoughts on Tachyon Cosmology
- Cosmological dynamics of the tachyon with an inverse power-law potential
- Tachyon Effective Actions In Open String Theory
- Problems with Tachyon Inflation
- Assisted Tachyonic Inflation
- A unified approach to scaling solutions in a general cosmological background
- Brane cosmology driven by the rolling tachyon
- Tracking solutions in tachyon cosmology
- Cosmological perturbations in a generalized gravity including tachyonic condensation
- Born-Infeld Quantum Condensate as Dark Energy in the Universe
- On the Cosmological Relevance of the Tachyon
- Cosmological Constraints on Tachyon Matter
- Caustics in Tachyon Matter and Other Born-Infeld Scalars
- Constraining slow-roll inflation with WMAP and 2dF
- Implementing Power Law Inflation with Tachyon Rolling on the Brane
- Density perturbations in generalized Einstein scenarios and constraints on nonminimal couplings from the Cosmic Microwave Background
- Brane-Antibrane Inflation in Orbifold and Orientifold Models
- Tachyon inflation: tests and comparison with single scalar field inflation
- Reheating from Tachyon Condensation
- Tachyonic Inflation in the Braneworld Scenario
- WMAPping inflationary physics
- Accelerating Cosmologies from Exponential Potentials
- WMAP and Inflation
- Inflationary Attractor from Tachyonic Matter
- Cosmology from Rolling Massive Scalar Field on the anti-D3 Brane of de Sitter Vacua
- Reconstruction of general scalar-field dark energy models
- Constraints on braneworld inflation from CMB anisotropies
- Observational constraints on patch inflation in noncommutative spacetime
- Reconstructing the Equation of State of Tachyon
- Rolling Tachyons in String Cosmology
- Slowly varying tachyon and tachyon potential
- Hybrid Inflation and Brane-Antibrane System
- On-shell S-matrix and tachyonic effective actions
- Inhomogeneous tachyon decay, light-cone structure and D-brane network problem in tachyon cosmology
- Cosmology with decaying tachyon matter
- A Note on Inflation with Tachyon Rolling on the Gauss-Bonnet Brane
- Non-tachyonic brane inflation
- D-brane Dynamics in RR Deformation of NS5-branes Background and Tachyon Cosmology
- Constraining Born-Infeld models of dark energy with CMB anisotropies
- Non-minimally Coupled Tachyonic Inflation in Warped String Background
- Noncommutative models in patch cosmology
- Inhomogeneous Fragmentation of the Rolling Tachyon
- Inflation from Tachyon Condensation, Large N Effects
- Generation of electromagnetic fields in string cosmology with a massive scalar field on the anti D-brane
- Warped Tachyonic Inflation in Type IIB Flux Compactifications and the Open-String Completeness Conjecture
- Dbrane Near NS5-branes: with Electromagnetic Field
- A note on the structural stability of tachyonic inflation
- Constraints on Dirac-Born-Infeld type dark energy models from varying alpha
- Extended Born-Infeld Dynamics and Cosmology
- D-Brane Dynamics and NS5 Rings
- Inflation from Geometrical Tachyons
- Tachyonic Inflation in a Warped String Background
- Inhomogeneous cosmologies with tachyonic dust as dark matter
- Geometrical Tachyon Kinks and NS5 Branes
- Note on DBI dynamics of Dbrane Near NS5-branes
- Dark energy and supermassive black holes
- Tachyon Defect Formation and Reheating in Brane-Antibrane Inflation
Cited by in corpus (39)
- Dynamics of dark energy
- Inflation Dynamics and Reheating
- Quantum loop effects on the power spectrum and constraints on primordial black holes
- Galileon inflation evades the no-go for PBH formation in the single-field framework
- Prospects of inflation in delicate D-brane cosmology
- Dark D-brane Cosmology
- Tachyon Field in Intermediate Inflation
- Entangled de Sitter from Stringy Axionic Bell pair I: An analysis using Bunch Davies vacuum
- Intermediate-Generalized Chaplygin Gas inflationary universe model
- Primordial non-Gaussianity from ultra slow-roll Galileon inflation
- Quantum entanglement in de Sitter space from Stringy Axion: An analysis using vacua
- CMB from EFT
- COSMOS--GTachyon from String Theory
- Inflation from D3-brane motion in the background of D5-branes
- Large fluctuations and Primordial Black Holes
- Cosmological spectrum of two-point correlation function from vacuum fluctuation of Stringy Axion field in De Sitter space: A study of the role of Quantum Entanglement
- Inflation with improved D3-brane potential and the fine tunings associated with the model
- Prospects of inflation with perturbed throat geometry
- The standard "static" spherically symmetric ansatz with perfect fluid source revisited
- Geometrical Tachyon Dynamics in the Background of a Bulk Tachyon Field
- Electrified Fuzzy Spheres and Funnels in Curved Backgrounds
- The Cosmological OTOC: A New Proposal for Quantifying Auto-Correlated Random Non-Chaotic Primordial Fluctuations
- Assisted Inflation from Geometric Tachyon
- Primordial Black Holes from Effective Field Theory of Stochastic Single Field Inflation at NNNLO
- Geometric Tachyon to Universal Open String Tachyon
- Origin of the geometric tachyon
- Tachyon warm inflation with the effects of Loop Quantum Cosmology in the light of Planck 2015
- Entanglement negativity in de Sitter biverse from Stringy Axionic Bell pair: An analysis using Bunch-Davies vacuum
- Tachyon field inspired dark energy and supernovae constraints
- Tachyon field non-minimally coupled to massive neutrino matter
- Geometric Tachyon and Warm Inflation
- Spinflation from Geometric Tachyon
- Proper acceleration, geometric tachyon and dynamics of a fundamental string near D branes
- Motion of a Test Particle in the Transverse space of Dp-Branes
- Cosmological Geometric Phase From Pure Quantum States: A study without/with having Bell's inequality violation
- Tachyonic Universes in Patch Cosmologies with
- Non-BPS D9-branes in the Early Universe
- Geometrical Tachyon Inflation in the Presence of a Bulk Tachyon Field
- Warming up D3 brane motion in the background of D5 brane and Inflation