De Sitter Holography and the Cosmic Microwave Background

Abstract

We interpret cosmological evolution holographically as a renormalisation group flow in a dual Euclidean field theory, as suggested by the conjectured dS/CFT correspondence. Inflation is described by perturbing around the infra-red fixed point of the dual field theory. The spectrum of the cosmic microwave background radiation is determined in terms of scaling violations in the field theory. The dark energy allows similar, albeit less predictive, considerations. We discuss the cosmological fine-tuning problems from the holographic perspective.

17 pages, 2 figures, uses JHEP style files; corrected and added references

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• String Theory and Hybrid Inflation/Acceleration
• Some Aspects of the de Sitter/CFT Correspondence
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Cited by in corpus (65)

• The Cosmological Constant and Dark Energy
• Non-Gaussian features of primordial fluctuations in single field inflationary models
• On graviton non-Gaussianities during inflation
• Inflation from a Tachyon Fluid?
• Infrared effects in inflationary correlation functions
• Inflation: flow, fixed points and observables to arbitrary order in slow roll
• Seeding primordial black holes in multifield inflation
• CMB from CFT
• Late-time Structure of the Bunch-Davies De Sitter Wavefunction
• Holography for inflation using conformal perturbation theory
• Inflation, holography, and the choice of vacuum in de Sitter space
• Conformal Invariance and the Four Point Scalar Correlator in Slow-Roll Inflation
• Constraints from Conformal Symmetry on the Three Point Scalar Correlator in Inflation
• Ward Identities for Scale and Special Conformal Transformations in Inflation
• Slow-roll parameters in braneworld cosmologies
• Searching for a holographic connection between dark energy and the low-l CMB multipoles
• Exploring de Sitter Space and Holography
• Decoupling in an expanding universe: boundary RG-flow affects initial conditions for inflation
• The Holographic Universe
• Decoupling in an expanding universe: backreaction barely constrains short distance effects in the CMB
• A parton picture of de Sitter space during slow-roll inflation
• Inflation and de Sitter Holography
• Cosmological 3-point correlators from holography
• Consistency condition for inflation from (broken) conformal symmetry
• Inflationary Consistency Conditions from a Wavefunctional Perspective
• Non-Gaussian Inflationary Perturbations from the dS/CFT Correspondence
• Accelerating Universes and String Theory
• Hologravity
• Inflationary Perturbations from Deformed CFT
• A new twist on dS/CFT
• Symmetry Constraints in Inflation, $\alpha$-vacua, and the Three Point Function
• On the Hagedorn Behaviour of PP-wave Strings and N=4 SYM Theory at Finite R-Charge Density
• Inflation and Braneworlds: Degeneracies and Consistencies
• On the power spectrum of inflationary cosmologies dual to a deformed CFT
• Future Boundary Conditions in De Sitter Space
• Holography, Diffeomorphisms, and Scaling Violations in the CMB
• Non-Gaussian corrections to the probability distribution of the curvature perturbation from inflation
• Constraints on holographic multi-field inflation and models based on the Hamilton-Jacobi formalism
• dS-Holographic C-Functions with a Topological, Dilatonic Twist
• Multi-field inflation from holography
• $\delta N$ formalism from superpotential and holography
• Tall tales from de Sitter space II: Field theory dualities
• Renormalisation of IR divergences and holography in de Sitter
• q-Deformed de Sitter/Conformal Field Theory Correspondence
• Euclidean and Hamiltonian thermodynamics for regular black holes
• Orbifold Physics and de Sitter Spacetime
• Improvement of energy-momentum tensor and non-Gaussianities in holographic cosmology
• Gravity with Perturbative Constraints: Dark Energy Without New Degrees of Freedom
• Holographic non-Gaussianities in general single-field inflation
• Wavefunctions in dS/CFT revisited: principal series and double-trace deformations
• On the TransPlanckian Censorship Conjecture in Holographic Cosmology
• Scale Factor Duality for Conformal Cyclic Cosmologies
• Cosmology at the boundary of de Sitter using the dS/QFT correspondence
• Holographic Inflation
• The energy scale of inflation: is the hunt for the primordial B-mode a waste of time?
• On the dual flow of slow-roll Inflation
• Holographic Entanglement Entropy in the FLRW Universe
• Inflationary non-Gaussianities in alpha vacua and consistency with conformal symmetries
• Ising Cosmology
• Remark About dS/CFT Correspondence
• Thermal effects in Ising Cosmology
• Comments on cosmological RG flows
• Dwelling on de Sitter
• Late time solutions for inhomogeneous Lambda-CDM cosmology, their characterization and observation
• Inhomogeneous post-inflationary Lambda-CDM cosmology as a moduli space expansion