Early dark energy and the screening mechanism

Abstract

In the early Universe, dark energy may have a non-negligible contribution. If this dark energy corresponds to an early cosmological constant, it leads to a late-time huge dark energy density which is much larger than what is expected for the current expansion of the Universe. Using a conformal coupling of the quintessence to the dark matter, and based on the screening models, we propose a process to reduce the early dark energy to its ultimate value in the late time. Early and late time dark energies can be unified in a single component, in this way.

arXiv comment16 pages, 5 figures, discussions added

References in corpus (40)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Cosmological Imprint of an Energy Component with General Equation of State
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• In the Realm of the Hubble tension $-$ a Review of Solutions
• Coupled Quintessence
• Cosmological Tracking Solutions
• Early Dark Energy Can Resolve The Hubble Tension
• Late-time cosmology in (phantom) scalar-tensor theory: dark energy and the cosmic speed-up
• Symmetron Fields: Screening Long-Range Forces Through Local Symmetry Restoration
• The Hubble Hunter's Guide
• New Gauss-Bonnet black holes with curvature induced scalarization in the extended scalar-tensor theories
• New physics in light of the $H_0$ tension: an alternative view
• Black hole hair in generalized scalar-tensor gravity
• Early dark energy, the Hubble-parameter tension, and the string axiverse
• Dynamics of dark energy with a coupling to dark matter
• Early dark energy from massive neutrinos -- a natural resolution of the Hubble tension
• Symmetron Cosmology
• Is the Hubble tension a hint of AdS phase around recombination?
• Acoustic Signatures in the Cosmic Microwave Background
• Early Dark Energy Cosmologies
• Consistency tests of $\Lambda$CDM from the early integrated Sachs-Wolfe effect: Implications for early-time new physics and the Hubble tension
• Observables and unobservables in dark energy cosmologies
• Analyzing the $H_0$ tension in $F(R)$ gravity models
• Transition from quintessence to phantom phase in quintom model
• Can Conformally Coupled Modified Gravity Solve The Hubble Tension?
• The past and future dynamics of quintom dark energy models
• Early mass varying neutrino dark energy: Nugget formation and Hubble anomaly
• Theoretical uncertainty in baryon oscillations
• Neutrino-Assisted Early Dark Energy: Theory and Cosmology
• Can Early Dark Energy Explain EDGES?
• Testing Dark energy models in the light of ${\sigma }_8$ tension
• Modelling and testing the equation of state for (Early) dark energy
• Mass varying neutrinos, symmetry breaking, and cosmic acceleration
• Symmetron and de Sitter attractor in a teleparallel model of cosmology
• $w_d=-1$ in interacting quintessence model
• Symmetry breaking and the onset of cosmic acceleration in scalar field models
• Cosmic acceleration and de Sitter expansion in hybrid mass varying neutrino model
• Oscillating scalar fields in extended quintessence
• Cosmic acceleration in screening hybrid quintessence model

Cited by in corpus (6)

• Seven hints that early-time new physics alone is not sufficient to solve the Hubble tension
• Rock 'n' Roll Solutions to the Hubble Tension
• Testing the $n_s-H_0$ scaling relation with Planck-independent CMB data
• Non-oscillating Early Dark Energy and Quintessence from Alpha-Attractors
• Does the fraction of dark matter diminish with early dark energy?
• Early dark energy and scalarization in a scalar-tensor model