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Nonflat time-variable dark energy cosmology

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arxiv 1307.7399 v3 pith:5LI4IPTI submitted 2013-07-28 astro-ph.CO gr-qchep-phhep-th

classification astro-ph.COgr-qchep-phhep-th
keywords energydarkfieldnonflatscalardensitymodeltime-variable
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

We generalize the time-variable dark energy scalar field $\Phi$ model ($\Phi$CDM) to nonflat space. We show that even in the space-curvature-dominated epoch the scalar field solution is a time-dependent fixed point or attractor, with scalar field energy density that grows relative to the energy density in spatial curvature. This is the first example of a physically consistent and complete model of dynamical dark energy in a nonflat geometry.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Updated observational constraints on $\phi$CDM dynamical dark energy cosmological models

    astro-ph.CO 2025-09 conditional novelty 5.0 of 10

    Updated φCDM constraints from Planck 2018 + non-CMB data find α=0.055±0.041, consistent with a cosmological constant and only mildly favoring evolving quintessence.

  2. Using SPTpol, Planck 2015, and non-CMB data to constrain tilted spatially-flat and untilted non-flat $\Lambda$CDM, XCDM, and $\phi$CDM dark energy inflation cosmologies

    astro-ph.CO 2019-08 conditional novelty 5.0 of 10

    Joint constraints from SPTpol, Planck 2015, and non-CMB data in six dark energy cosmologies find no strong data tension and continue to favor spatially closed universes over flat ones.

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