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Kinetically driven quintessence

Open access
Chiba, Takeshi, Okabe, Takahiro, Yamaguchi, Masahide·2000·Physical Review D

Abstract

Recently, a novel class of models for inflation has been found in which the inflationary dynamics is driven solely by (noncanonical) kinetic terms rather than by potential terms. As an obvious extension, we show that a scalar field with noncanonical kinetic terms alone behaves like an energy component which is time varying and has negative pressure presently, i.e., quintessence. We present a model which has a constant equation of state, that is, a ``kinetic'' counterpart of the Ratra-Peebles model of a quintessence field with a potential term. We make clear the structure of the phase plane and show that the quintessential solution is a late-time attractor. We also give a model for the ``phantom'' component which has an equation of state with $w=p/\ensuremath{\rho}<\ensuremath{-}1.$

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Metadata

Authors
Chiba, T., Okabe, T., & Yamaguchi, M.
Venue
Physical Review D
Published
2000-06-23
Volume
62
Issue
2
ISSN
  • 0556-2821 (ISSN-L)
  • 1089-4918
OpenAlex
W2149441316
Cited by
1,434
References
4
FWCI
11.12
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Kinetically driven quintessence. https://app.cochat.ai/papers/10.1103/physrevd.62.023511
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Chiba, T., Okabe, T., & Yamaguchi, M. (2000). Kinetically driven quintessence. Physical Review D. https://doi.org/10.1103/physrevd.62.023511

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.