# Searching for dark energy in the matter-dominated era

@article{Bull2020SearchingFD,
title={Searching for dark energy in the matter-dominated era},
author={Philip Bull and Martin White and An{\vz}e Slosar},
journal={arXiv: Cosmology and Nongalactic Astrophysics},
year={2020}
}
• Published 2020
• Physics
• arXiv: Cosmology and Nongalactic Astrophysics
Most efforts to detect signatures of dynamical dark energy are focused on late times, $z \lesssim 2$, where the dark energy component begins to dominate the cosmic energy density. Many theoretical models involving dynamical dark energy exhibit a 'freezing' equation of state however, where $w \to -1$ at late times, with a transition to a 'tracking' behaviour at earlier times (with $w \gg -1$ at sufficiently high redshift). In this paper, we study whether large-scale structure surveys in the post… Expand
2 Citations

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#### References

SHOWING 1-10 OF 104 REFERENCES
Early dark energy cosmologies
• Physics
• 2006
We propose a novel parameterization of the dark energy density. It is particularly well suited to describe a non-negligible contribution of dark energy at early times and contains only threeExpand
Phenomenology of dark energy: general features of large-scale perturbations
• Physics
• 2015
We present a systematic exploration of dark energy and modified gravity models containing a single scalar field non-minimally coupled to the metric. Even though the parameter space is large, byExpand
Early dark energy at high redshifts: status and perspectives
• Physics
• 2009
Early dark energy models, for which the contribution to the dark energy density at high redshifts is not negligible, influence the growth of cosmic structures and could leave observable signaturesExpand
Dark Energy in the Dark Ages
Non-negligible dark energy density at high redshifts would indicate dark energy physics distinct from a cosmological constant or reasonable' canonical scalar fields. Such dark energy can beExpand
Dark energy at early times, the Hubble parameter, and the string axiverse
• Physics
• 2016
Precise measurements of the cosmic microwave background (CMB) power spectrum are in excellent agreement with the predictions of the standard $\mathrm{\ensuremath{\Lambda}}\mathrm{CDM}$ cosmologicalExpand
Dark energy in Horndeski theories after GW170817: A review
• Physics
• International Journal of Modern Physics D
• 2019
The gravitational wave (GW) event GW170817 from a binary neutron star merger together with the electromagnetic counterpart showed that the speed of GWs [Formula: see text] is very close to that ofExpand
Early Dark Energy can Resolve the Hubble Tension.
• Physics, Medicine
• Physical review letters
• 2019
This work considers two physical models for this early dark energy EDE, one involving an oscillating scalar field and another a slowly rolling field, and performs a detailed calculation of the evolution of perturbations in these models. Expand
Limits on Dark Radiation, Early Dark Energy, and Relativistic Degrees of Freedom
• Physics
• 2011
Recent cosmological data analyses hint at the presence of an extra relativistic energy component in the early universe. This component is often parametrized as an excess of the effective neutrinoExpand
LATE-TIME COSMOLOGY WITH 21CM INTENSITY MAPPING EXPERIMENTS
• Physics
• 2015
We present a framework for forecasting cosmological constraints from future neutral hydrogen intensity mapping experiments at low to intermediate redshifts. In the process, we establish a simple wayExpand
Does the Hubble constant tension call for new physics
• Physics
• 2018
The Λ Cold Dark Matter model (ΛCDM) represents the current standard model in cosmology. Within this, there is a tension between the value of the Hubble constant, H0, inferred from local distanceExpand