Comparing Infrared Dirac-Born-Infeld Brane Inflation to Observations
arXiv:0710.1812 · doi:10.1103/PhysRevD.77.023527
Abstract
We compare the Infrared Dirac-Born-Infeld (IR DBI) brane inflation model to observations using a Bayesian analysis. The current data cannot distinguish it from the \LambdaCDM model, but is able to give interesting constraints on various microscopic parameters including the mass of the brane moduli potential, the fundamental string scale, the charge or warp factor of throats, and the number of the mobile branes. We quantify some distinctive testable predictions with stringy signatures, such as the large non-Gaussianity, and the large, but regional, running of the spectral index. These results illustrate how we may be able to probe aspects of string theory using cosmological observations.
54 pages, 13 figures. v2: non-Gaussianity constraint has been applied to the model; parameter constraints have tightened significantly, conclusions unchanged. References added; v3, minor revision, PRD version
References in corpus (83)
- The Sloan Digital Sky Survey: Technical Summary
- A Large Mass Hierarchy from a Small Extra Dimension
- Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
- Efficient Computation of CMB anisotropies in closed FRW models
- Cosmological parameters from CMB and other data: a Monte-Carlo approach
- Non-Gaussian features of primordial fluctuations in single field inflationary models
- The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set
- Hierarchies from Fluxes in String Compactifications
- Particle Physics Models of Inflation and the Cosmological Density Perturbation
- The 3D power spectrum of galaxies from the SDSS
- Supergravity and a Confining Gauge Theory: Duality Cascades and SB-Resolution of Naked Singularities
- Cosmological Constraints from the SDSS Luminous Red Galaxies
- Three Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Polarization Analysis
- Towards Inflation in String Theory
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Implications for Inflation
- Perturbations in k-inflation
- DBI in the Sky
- Acoustic Signatures in the Primary Microwave Background Bispectrum
- Observational Signatures and Non-Gaussianities of General Single Field Inflation
- Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Temperature Analysis
- Brane Inflation
- Flux Compactification
- What would we learn by detecting a gravitational wave signal in the cosmic microwave background anisotropy?
- Scalar Speed Limits and Cosmology: Acceleration from D-cceleration
- The Trans-Planckian Problem of Inflationary Cosmology
- Semiclassicality and Decoherence of Cosmological Perturbations
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Parameter Estimation Methodology
- The Inflationary Brane-Antibrane Universe
- The shape of non-Gaussianities
- Inflationary Cosmology
- Primordial non-gaussianities in single field inflation
- A note on inflation and transplanckian physics
- The Linear Theory Power Spectrum from the Lyman-alpha Forest in the Sloan Digital Sky Survey
- Brane/Flux Annihilation and the String Dual of a Non-Supersymmetric Field Theory
- Inflationary perturbations from a potential with a step
- Large Non-Gaussianities in Single Field Inflation
- On D3-brane Potentials in Compactifications with Fluxes and Wrapped D-branes
- Calabi-Yau fourfolds for M- and F-Theory compactifications
- The bispectrum of galaxies from high-redshift galaxy surveys: primordial non-Gaussianity and non-linear galaxy bias
- Loop Corrections to Volume Moduli and Inflation in String Theory
- A generic estimate of trans-Planckian modifications to the primordial power spectrum in inflation
- Running Non-Gaussianities in DBI Inflation
- A Microscopic Limit on Gravitational Waves from D-brane Inflation
- Inflation from Warped Space
- Multi-Throat Brane Inflation
- Imprints of Short Distance Physics On Inflationary Cosmology
- Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Beam Profiles, Data Processing, Radiometer Characterization and Systematic Error Limits
- Efficient Cosmological Parameter Estimation from Microwave Background Anisotropies
- Inflation and WMAP three year data: Features have a Future!
- II: Bayesian Methods for Cosmological Parameter Estimation from Cosmic Microwave Background Measurements
- Limits on f_NL parameters from WMAP 3yr data
- On Inflation in String Theory
- Primordial Non-Gaussianity and Analytical Formula for Minkowski Functionals of the Cosmic Microwave Background and Large-scale Structure
- Observing Brane Inflation
- Constraining Isocurvature Initial Conditions with WMAP 3-year data
- The Age of the Universe and the Cosmological Constant Determined from Cosmic Microwave Background Anisotropy Measurements
- Phenomenology of D-Brane Inflation with General Speed of Sound
- Comparing Brane Inflation to WMAP
- Improved Measurements of the CMB Power Spectrum with ACBAR
- Lectures on Cosmic Inflation and its Potential Stringy Realizations
- Recovering the Inflationary Potential and Primordial Power Spectrum With a Slow Roll Prior: Methodology and Application to WMAP 3 Year Data
- DBI Inflation in the Tip Region of a Warped Throat
- Slow Roll Reconstruction: Constraints on Inflation from the 3 Year WMAP Dataset
- Implications of a Running Spectral Index for Slow Roll Inflation
- Heating in Brane Inflation and Hidden Dark Matter
- Gravitational Wave Constraints on DBI Inflation
- Inflation from Wrapped Branes
- Testing for double inflation with WMAP
- Uplifting and Inflation with D3 Branes
- Brane Inflation : String Theory viewed from the Cosmos
- On what scale should inflationary observables be constrained?
- Primordial Non-Gaussianity and Gravitational Waves: Observational Tests of Brane Inflation in String Theory
- Introduction to Cosmic F- and D-Strings
- Boundary Effective Field Theory and Trans-Planckian Perturbations: Astrophysical Implications
- Is Brane Inflation Eternal?
- Observing the Geometry of Warped Compactification via Cosmic Inflation
- Observing Trans-Planckian Signatures in the Cosmic Microwave Background
- A Consistency Relation for Power Law Inflation in DBI models
- IR Inflation from Multiple Branes
- Constraints on Brane Inflation and Cosmic Strings
- Cosmological Rescaling through Warped Space
- Structures in the Gauge/Gravity Duality Cascade
- Extracting New Physics from the CMB
Cited by in corpus (82)
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- Planck 2013 results. XXII. Constraints on inflation
- Encyclopaedia Inflationaris
- Cosmology and Fundamental Physics with the Euclid Satellite
- Monodromy in the CMB: Gravity Waves and String Inflation
- Cosmology and fundamental physics with the Euclid satellite
- Primordial Non-Gaussianities from Inflation Models
- Planck 2015 results. XVII. Constraints on primordial non-Gaussianity
- Planck 2013 Results. XXIV. Constraints on primordial non-Gaussianity
- Equilateral Non-Gaussianity and New Physics on the Horizon
- Constraining Running Non-Gaussianity
- Duality Cascade in Brane Inflation
- Bayesian Analysis of Inflation: Parameter Estimation for Single Field Models
- Planck constraints on single-field inflation
- Holographic Systematics of D-brane Inflation
- Large slow-roll corrections to the bispectrum of noncanonical inflation
- On the full trispectrum in single field DBI-inflation
- DBI Realizations of the Pseudo-Conformal Universe and Galilean Genesis Scenarios
- On Minimally-Parametric Primordial Power Spectrum Reconstruction and the Evidence for a Red Tilt
- Warp Features in DBI Inflation
- Primordial fluctuations and non-Gaussianities from multifield DBI Galileon inflation
- Chasing Brane Inflation in String-Theory
- On the full quantum trispectrum in multi-field DBI inflation
- Quantum modes in DBI inflation: exact solutions and constraints from vacuum selection
- Warm DBI Inflation
- Reconstructing a general inflationary action
- K-inflationary Power Spectra in the Uniform Approximation
- Dirac-Born-Infeld realization of sound speed resonance mechanism for primordial black holes
- Lorentz boost and non-Gaussianity in multi-field DBI-inflation
- Combined local and equilateral non-Gaussianities from multifield DBI inflation
- K-inflationary Power Spectra at Second Order
- MultiModeCode: An efficient numerical solver for multifield inflation
- Inflation at the Tip
- Constraints on Kinetically Modified Inflation from WMAP5
- Cosmological Dynamics of a Dirac-Born-Infeld field
- First constraints on the running of non-Gaussianity
- Circumventing the eta problem in building an inflationary model in string theory
- Supersymmetric DBI inflation
- Cosmological constraints on general, single field inflation
- Constraints on Brane Inflation and Cosmic Strings
- Non-canonical generalizations of slow-roll inflation models
- String Vertex Operators and Cosmic Strings
- On the degeneracy between primordial tensor modes and cosmic strings in future CMB data from Planck
- Inflationary potentials in DBI models
- Brane Inflation is Attractive
- Observational Signatures of Gravitational Couplings in DBI Inflation
- Early Universe Tomography with CMB and Gravitational Waves
- Tensors, non-Gaussianities, and the future of potential reconstruction
- Fine-Tuning in DBI Inflationary Mechanism
- Constraining Scale-Dependent Non-Gaussianity with Future Large-Scale Structure and the CMB
- Single-Field Inflation After WMAP5
- Observational constraints on tachyon and DBI inflation
- Gravitational Wave Constraints on Multi-Brane Inflation
- DBI Inflation in N=1 Supergravity
- Inflation in DBI models with constant gamma
- Fields Annihilation and Particles Creation in DBI inflation
- Rotating a Curvaton Brane in a Warped Throat
- Dynamics of D3-D7 Brane Inflation in Throats
- Geometrically Consistent Approach to Stochastic DBI Inflation
- Brane Inflation and the Overshoot Problem
- Non-Gaussianities in multi-field DBI inflation with a waterfall phase transition
- Confronting brane inflation with Planck and pre-Planck data
- Constraints on brane inflation after Planck 2015: Impacts of the latest local measurement of the Hubble constant
- Reconstructing Single Field Inflationary Actions From CMBR Data
- WMAP Constraints On K-Inflation
- Different approaches to the second order Klein-Gordon equation
- Towards an Observational Appraisal of String Cosmology
- Inflation with exotic kinetic terms in Einstein-Chern-Simons gravity
- Perturbation Theory in k-Inflation Coupled to Matter
- Non-Gaussianities in DBI inflation with angular motion
- DBI Lifshitz Inflation
- Consistency relation for the Lorentz invariant single-field inflation
- Constraining Inflationary Scenarios with Braneworld Models and Second Order Cosmological Perturbations
- Trapped Brane Features in DBI Inflation
- Superimposed Oscillations in Brane Inflation
- Are latest detected events of gravitational waves in favor of some models of inflation based on string theory?
- Cosmology on Compact and Stable Supergravity Background
- On the four-dimensional effective theories in brane-worlds
- Cosmological Perturbations in Inflationary Models with Anisotropic Space-Time Scaling in Lifshitz Background
- Aspects of inflation and the very early universe
- PhD Thesis: String theory in the early universe
- Modification from Noncommutative Inflation