Multi-field inflation from holography

Abstract

We initiate the study of multi-field inflation using holography. Bulk light scalar fields correspond to nearly marginal operators in the boundary theory and the dual quantum field theory is a deformation of a CFT by such operators. We compute the power spectra of adiabatic and entropy perturbations in a simple model and find that the adiabatic curvature perturbation is not conserved in the presence of entropy perturbations but becomes conserved when the entropy perturbations are set to zero or the model is effectively a single scalar model, in agreement with expectations from cosmological perturbation theory.

26 pages, 1 figure

References in corpus (53)

• Gauge Theory Correlators from Non-Critical String Theory
• The Large N Limit of Superconformal Field Theories and Supergravity
• Non-Gaussian features of primordial fluctuations in single field inflationary models
• Lecture Notes on Holographic Renormalization
• The dS/CFT Correspondence
• Modeling the fifth dimension with scalars and gravity
• Planck 2013 results. XXII. Constraints on inflation
• A General Analytic Formula for the Spectral Index of the Density Perturbations produced during Inflation
• A general proof of the conservation of the curvature perturbation
• Adiabatic and entropy perturbations from inflation
• Holographic Renormalization
• On the Holographic Renormalization Group
• On graviton non-Gaussianities during inflation
• Gravitational Stability and Renormalization-Group Flow
• Super-Horizon Scale Dynamics of Multi-Scalar Inflation
• Holographic and Wilsonian Renormalization Groups
• Conformal Vacua and Entropy in de Sitter Space
• How to go with an RG Flow
• Timelike T-Duality, de Sitter Space, Large $N$ Gauge Theories and Topological Field Theory
• Inflation and the dS/CFT Correspondence
• The Trouble with de Sitter Space
• Fake Supergravity and Domain Wall Stability
• F-Theorem without Supersymmetry
• Holography for Cosmology
• Is There Really a de Sitter/CFT Duality
• CMB from CFT
• Hidden supersymmetry of domain walls and cosmologies
• Holography for inflation using conformal perturbation theory
• Conformal Invariance and the Four Point Scalar Correlator in Slow-Roll Inflation
• The Wave Function of Vasiliev's Universe - A Few Slices Thereof
• Holographic No-Boundary Measure
• De Sitter Holography and the Cosmic Microwave Background
• Holographic Non-Gaussianity
• The Holographic Universe
• Inflation and de Sitter Holography
• Consistency condition for inflation from (broken) conformal symmetry
• Cosmological 3-point correlators from holography
• Inflationary Consistency Conditions from a Wavefunctional Perspective
• Non-Gaussian Inflationary Perturbations from the dS/CFT Correspondence
• Quantum Probabilities for Inflation from Holography
• Inflationary Perturbations from Deformed CFT
• Topology of Future Infinity in dS/CFT
• Asymptotic freedom, asymptotic flatness and cosmology
• On the power spectrum of inflationary cosmologies dual to a deformed CFT
• Holography, Diffeomorphisms, and Scaling Violations in the CMB
• Holographic multiverse and conformal invariance
• Inflation and deformation of conformal field theory
• Holographic multiverse and the measure problem
• Constraining holographic inflation with WMAP
• Holographic inflation and the conservation of $\zeta$
• Improvement of energy-momentum tensor and non-Gaussianities in holographic cosmology
• On the dual flow of slow-roll Inflation
• Instantons and the Hartle-Hawking-Maldacena Proposal for dS/CFT

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• From Planck data to Planck era: Observational tests of Holographic Cosmology
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• Conformal correlators as simplex integrals in momentum space
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• Landscape tomography through primordial non-Gaussianity
• Constraints on holographic multi-field inflation and models based on the Hamilton-Jacobi formalism
• $\delta N$ formalism from superpotential and holography
• Universality for quintessence
• Renormalisation of IR divergences and holography in de Sitter
• Identifying Universality in Warm Inflation
• Constraining holographic cosmology using Planck data
• A simple, exact, model of quasi-single field inflation
• Holography for the very early Universe and the classic puzzles of Hot Big Bang cosmology
• Holographic non-Gaussianities in general single-field inflation
• On multi-field flows in gravity and holography
• Universality in generalized models of inflation
• Wavefunctions in dS/CFT revisited: principal series and double-trace deformations
• On the TransPlanckian Censorship Conjecture in Holographic Cosmology
• An Hamilton-Jacobi formulation of anisotropic inflation
• Conservation of $\zeta$ with radiative corrections from heavy field
• Consistency relations and conservation of $\zeta$ in holographic inflation
• Holographic cosmology solutions of problems with pre-inflationary cosmology
• General solutions to $\mathcal{N}$-field cosmology with exponential potentials
• Holographic (Eternal) Inflation
• Evolution of perturbations in a universe with exotic solid-like matter