Λ is Coming: Parametrizing Freezing Fields
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Date
2018-03-21
Authors
Linder, Eric V.
Journal Title
Journal ISSN
Volume Title
Publisher
NURIS; Energetic Cosmos Laboratory
Abstract
We explore freezing dark energy, where the evolution of the field approaches that of a cosmological constant at late times. We propose two general, two-parameter forms to describe the class of freezing field models, in analogy to ones for thawing fields, here based on the physics of the flow parameter or the calibrated w-w′ phase space. Observables such as distances and Hubble parameters are fit to within 0.1%, and the dark energy equation of state generally to within better than 1%, of the exact numerical solutions.
Description
Energetic Cosmos Laboratory. ECL Publications
Keywords
The 2nd international conference of the Energetic Cosmos Laboratory (ECL), ECL19, Energetic Cosmos Laboratory (ECL)
Citation
Linder, E. V. (2018). Λ is Coming: Parametrizing Freezing Fields. 2(1), 1–5. arXiv:1701.01445v2