Inflation from Wrapped Branes

Abstract

We show that the use of higher dimensional wrapped branes can significantly extend the inflaton field range compared to brane inflation models which use D3-branes. We construct a simple inflationary model in terms of 5-branes wrapping a 2-cycle and traveling towards the tip of the Klebanov-Strassler throat. Inflation ends when the branes reach the tip of the cone and self-annihilate. Assuming a quadratic potential for the brane it is possible to match the CMB data in the DBI regime, but we argue that the backreaction of the brane is important and cannot be neglected. This scenario predicts a strong non-Gaussian signal and possibly detectable gravitational waves.

13 pages, 2 figures; v2 typos corrected, minor additions, added references

References in corpus (46)

• de Sitter Vacua in String Theory
• Hierarchies from Fluxes in String Compactifications
• Towards Inflation in String Theory
• DBI in the Sky
• Brane Inflation
• 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
• Cosmic String Production Towards the End of Brane Inflation
• The Inflationary Brane-Antibrane Universe
• The String Dual of a Confining Four-Dimensional Gauge Theory
• Scales and hierarchies in warped compactifications and brane worlds
• On D3-brane Potentials in Compactifications with Fluxes and Wrapped D-branes
• Brane Interaction as the Origin of Inflation
• Inflation from D-\bar{D} brane annihilation
• Dynamics of warped compactifications and the shape of the warped landscape
• A Microscopic Limit on Gravitational Waves from D-brane Inflation
• Inflation from Warped Space
• A Delicate Universe
• Multi-Throat Brane Inflation
• Random Matrices and the Spectrum of N-flation
• M-Theory Inflation from Multi M5-Brane Dynamics
• Limits on f_NL parameters from WMAP 3yr data
• The Giant Inflaton
• Observing Brane Inflation
• Phenomenology of D-Brane Inflation with General Speed of Sound
• Supersymmetric probes on the conifold
• Comparing Brane Inflation to WMAP
• Closed strings from decaying D-branes
• Warped Supersymmetry Breaking
• DBI Inflation in the Tip Region of a Warped Throat
• Gravitational Wave Constraints on DBI Inflation
• Multibrane Inflation and Dynamical Flattening of the Inflaton Potential
• The (p,q) String Tension in a Warped Deformed Conifold
• Task Force on Cosmic Microwave Background Research
• Supersymmetric Branes on AdS_5 x Y^{p,q} and their Field Theory Duals
• The Lyth Bound and the End of Inflation
• Braneworld inflation
• Cycling in the Throat
• D3-brane Vacua in Stabilized Compactifications
• IR Inflation from Multiple Branes
• Accelerating Universes from Compactification on a Warped Conifold
• Large Gravitational Waves and Lyth Bound in Multi Brane Inflation
• Non-Abelian (p,q) Strings in the Warped Deformed Conifold
• Dielectric (p,q) Strings in a Throat
• The N-Tachyon Assisted Inflation
• An Inflationary Scenario in Intersecting Brane Models

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• Monodromy in the CMB: Gravity Waves and String Inflation
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• Comparing Infrared Dirac-Born-Infeld Brane Inflation to Observations
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• The D5-brane effective action and superpotential in N=1 compactifications
• Warping the Weak Gravity Conjecture
• Axion Inflation and Gravity Waves in String Theory
• Multi-field DBI inflation: introducing bulk forms and revisiting the gravitational wave constraints
• Quantum modes in DBI inflation: exact solutions and constraints from vacuum selection
• Generalised DBI-Quintessence
• Update of D3/D7-Brane Inflation on K3 x T^2/Z_2
• Fat Inflatons, Large Turns and the $\eta$-problem
• D-brane Potentials in the Warped Resolved Conifold and Natural Inflation
• Gauge field back-reaction in Born Infeld cosmologies
• Brane Inflation is Attractive
• Statistical Anisotropy from Vector Curvaton in D-brane Inflation
• Observational Signatures of Gravitational Couplings in DBI Inflation
• The structure of correlation functions in single field inflation
• Fine-Tuning in DBI Inflationary Mechanism
• Quintessence and phantom dark energy from ghost D-branes
• Single-Field Inflation After WMAP5
• Gravitational Wave Constraints on Multi-Brane Inflation
• Warped Wilson Line DBI Inflation
• DBI Inflation using a One-Parameter Family of Throat Geometries
• Observational constraints on DBI constant-roll inflation
• Dangerous Angular KK/Glueball Relics in String Theory Cosmology
• Power-counting during single-field slow-roll inflation
• Inflation on an Open Racetrack
• Primordial Spikes from Wrapped Brane Inflation
• Rotating a Curvaton Brane in a Warped Throat
• Brane Inflation and the Overshoot Problem
• DBI Galileon inflation in the light of Planck 2015
• Effects of Light Fields During Inflation
• Codimension-2 brane inflation
• Simple cosmological de Sitter solutions on dS${}_4\times Y_6$ spaces
• Reconstructing Single Field Inflationary Actions From CMBR Data
• Holomorphic Couplings In Non-Perturbative String Compactifications
• Warped compactification on curved manifolds
• Twisted Inflation
• Towards an Observational Appraisal of String Cosmology
• Non-Gaussianities in DBI inflation with angular motion
• Bounds on Tensor wave and Twisted Inflation
• Spinflation from Geometric Tachyon
• Constraining Inflationary Scenarios with Braneworld Models and Second Order Cosmological Perturbations
• Is inflation from unwinding fluxes IIB?
• Inhomogeneous Reheating Scenario with DBI fields