Detecting Dark Energy in Orbit -- the Cosmological Chameleon

Abstract

We show that the chameleon scalar field can drive the current phase of cosmic acceleration for a large class of scalar potentials that are also consistent with local tests of gravity. These provide explicit realizations of a quintessence model where the quintessence scalar field couples directly to baryons and dark matter with gravitational strength. We analyze the cosmological evolution of the chameleon field and show the existence of an attractor solution with the chameleon following the minimum of its effective potential. For a wide range of initial conditions, spanning many orders of magnitude in initial chameleon energy density, the attractor is reached before nucleosynthesis. Surprisingly, the range of allowed initial conditions leading to a successful cosmology is wider than in normal quintessence. We discuss applications to the cyclic model of the universe and show how the chameleon mechanism weakens some of the constraints on cyclic potentials.

31 pages, 6 figures. v2: Minor corrections, added references, version published in PRD

References in corpus (68)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• A Large Mass Hierarchy from a Small Extra Dimension
• An Alternative to Compactification
• Cosmological Imprint of an Energy Component with General Equation of State
• 4D Gravity on a Brane in 5D Minkowski Space
• Cosmology and the Fate of Dilatation Symmetry
• Coupled Quintessence
• Chameleon Fields: Awaiting Surprises for Tests of Gravity in Space
• Chameleon Cosmology
• The Ekpyrotic Universe: Colliding Branes and the Origin of the Hot Big Bang
• Cosmological Tracking Solutions
• The String Dilaton and a Least Coupling Principle
• The fundamental constants and their variation: observational status and theoretical motivations
• Accelerated Universe from Gravity Leaking to Extra Dimensions
• Ghost Condensation and a Consistent Infrared Modification of Gravity
• Further Evidence for Cosmological Evolution of the Fine Structure Constant
• Tests of the Gravitational Inverse-Square Law
• Cosmic Evolution in a Cyclic Universe
• A Search for Time Variation of the Fine Structure Constant
• From Big Crunch to Big Bang
• A Cyclic Model of the Universe
• Sub-millimeter tests of the gravitational inverse-square law: A search for "large" extra dimensions
• The Confrontation between General Relativity and Experiment
• Further evidence for a variable fine-structure constant from Keck/HIRES QSO absorption spectra
• Gravity on a Brane in Infinite-Volume Extra Space
• Interacting Dark Matter and Dark Energy
• String theory and gravity
• The cosmon model for an asymptotically vanishing time-dependent cosmological ``constant''
• The pressure of hot QCD up to g^6 ln(1/g)
• Runaway dilaton and equivalence principle violations
• Possible evidence for a variable fine structure constant from QSO absorption lines: motivations, analysis and results
• Stationary dark energy: the present universe as a global attractor
• Tracking and coupled dark energy as seen by WMAP
• Kasner and Mixmaster behavior in universes with equation of state w \ge 1
• Density Perturbations in the Ekpyrotic Scenario
• Linear and non-linear perturbations in dark energy models
• Dark Energy and Dark Matter
• Designing Cyclic Universe Models
• Spacetime-varying couplings and Lorentz violation
• Baryon bias and structure formation in an accelerating universe
• Changing alpha With Time: Implications For Fifth-Force-Type Experiments And Quintessence
• Evolution of the Fine Structure Constant Driven by Dark Matter and the Cosmological Constant
• The cosmic gravitational wave background in a cyclic universe
• Scalar--Tensor Theories of Gravity with \PHI Dependent Masses
• Cosmological Perturbations in a Big Crunch/Big Bang Space-time
• Further constraints on variation of the fine structure constant from alkali doublet QSO absorption lines
• Cosmological acceleration, varying couplings, and Lorentz breaking
• Improved constraints on possible variation of physical constants from H I 21cm and molecular QSO absorption lines
• Conditions for Generating Scale-Invariant Density Perturbations
• Models of quintessence coupled to the electromagnetic field and the cosmological evolution of alpha
• Constraints on the interaction and self-interaction of dark energy from cosmic microwave background
• Time Variation of the Fine Structure Constant Driven by Quintessence
• Inflation versus Cyclic Predictions for Spectral Tilt
• Fine-structure constant variability, equivalence principle and cosmology
• A Cosmological Mechanism for Stabilizing Moduli
• Mapping the Dark Energy with Varying Alpha
• A new duality relating density perturbations in expanding and contracting Friedmann cosmologies
• Does the fine structure constant vary? A detailed investigation into systematic effects
• Perturbation evolution with a non-minimally coupled scalar field
• CMB Anisotropies in the Presence of Extra Dimensions
• Gauge Coupling Variation in Brane Models
• Model for Gravitational Interaction between Dark Matter and Baryons
• Varying Constants in Brane World Scenarios
• Galaxy Clustering and Dark Energy
• Cosmological Variation of the Fine Structure Constant from an Ultra-Light Scalar Field: The Effects of Mass
• Cosmic acceleration in models with density dependent moduli

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