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Current observations with a decaying cosmological constant allow for chaotic cyclic cosmology

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Current observations with a decaying cosmological constant allow for chaotic cyclic cosmology. / Ellis, George F.R.; Platts, Emma; Sloan, David et al.
In: Journal of Cosmology and Astroparticle Physics, Vol. 2016, No. 04, 13.04.2016, p. 26.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Ellis, GFR, Platts, E, Sloan, D & Weltman, A 2016, 'Current observations with a decaying cosmological constant allow for chaotic cyclic cosmology', Journal of Cosmology and Astroparticle Physics, vol. 2016, no. 04, pp. 26. https://doi.org/10.1088/1475-7516/2016/04/026

APA

Ellis, G. F. R., Platts, E., Sloan, D., & Weltman, A. (2016). Current observations with a decaying cosmological constant allow for chaotic cyclic cosmology. Journal of Cosmology and Astroparticle Physics, 2016(04), 26. https://doi.org/10.1088/1475-7516/2016/04/026

Vancouver

Ellis GFR, Platts E, Sloan D, Weltman A. Current observations with a decaying cosmological constant allow for chaotic cyclic cosmology. Journal of Cosmology and Astroparticle Physics. 2016 Apr 13;2016(04):26. doi: 10.1088/1475-7516/2016/04/026

Author

Ellis, George F.R. ; Platts, Emma ; Sloan, David et al. / Current observations with a decaying cosmological constant allow for chaotic cyclic cosmology. In: Journal of Cosmology and Astroparticle Physics. 2016 ; Vol. 2016, No. 04. pp. 26.

Bibtex

@article{817a15530e8543ef9eac3079388fb3bf,
title = "Current observations with a decaying cosmological constant allow for chaotic cyclic cosmology",
abstract = "We use the phase plane analysis technique of Madsen and Ellis [1] to consider a universe with a true cosmological constant as well as a cosmological “constant” that is decaying. Time symmetric dynamics for the inflationary era allows eternally bouncing models to occur. Allowing for scalar field dynamic evolution, we find that if dark energy decays in the future, chaotic cyclic universes exist provided the spatial curvature is positive. This is particularly interesting in light of current observations which do not yet rule out either closed universes or possible evolution of the cosmological constant. We present only a proof of principle, with no definite claim on the physical mechanism required for the present dark energy to decay.",
author = "Ellis, {George F.R.} and Emma Platts and David Sloan and Amanda Weltman",
year = "2016",
month = apr,
day = "13",
doi = "10.1088/1475-7516/2016/04/026",
language = "English",
volume = "2016",
pages = "26",
journal = "Journal of Cosmology and Astroparticle Physics",
issn = "1475-7516",
publisher = "IOP Publishing",
number = "04",

}

RIS

TY - JOUR

T1 - Current observations with a decaying cosmological constant allow for chaotic cyclic cosmology

AU - Ellis, George F.R.

AU - Platts, Emma

AU - Sloan, David

AU - Weltman, Amanda

PY - 2016/4/13

Y1 - 2016/4/13

N2 - We use the phase plane analysis technique of Madsen and Ellis [1] to consider a universe with a true cosmological constant as well as a cosmological “constant” that is decaying. Time symmetric dynamics for the inflationary era allows eternally bouncing models to occur. Allowing for scalar field dynamic evolution, we find that if dark energy decays in the future, chaotic cyclic universes exist provided the spatial curvature is positive. This is particularly interesting in light of current observations which do not yet rule out either closed universes or possible evolution of the cosmological constant. We present only a proof of principle, with no definite claim on the physical mechanism required for the present dark energy to decay.

AB - We use the phase plane analysis technique of Madsen and Ellis [1] to consider a universe with a true cosmological constant as well as a cosmological “constant” that is decaying. Time symmetric dynamics for the inflationary era allows eternally bouncing models to occur. Allowing for scalar field dynamic evolution, we find that if dark energy decays in the future, chaotic cyclic universes exist provided the spatial curvature is positive. This is particularly interesting in light of current observations which do not yet rule out either closed universes or possible evolution of the cosmological constant. We present only a proof of principle, with no definite claim on the physical mechanism required for the present dark energy to decay.

U2 - 10.1088/1475-7516/2016/04/026

DO - 10.1088/1475-7516/2016/04/026

M3 - Journal article

VL - 2016

SP - 26

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

SN - 1475-7516

IS - 04

ER -