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Unified phantom cosmology: inflation, dark energy and dark matter under the same standard

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arxiv hep-th/0507182 v3 pith:N7UJ3O7E submitted 2005-07-19 hep-th astro-phgr-qc

Unified phantom cosmology: inflation, dark energy and dark matter under the same standard

S. Capozziello , S. Nojiri , S.D. Odintsov This is my paper
classification hep-th astro-phgr-qc
keywords cosmologydarkphantommatterenergysameunifiedepoch
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Phantom cosmology allows to account for dynamics and matter content of the universe tracing back the evolution to the inflationary epoch, considering the transition to the non-phantom standard cosmology (radiation/matter dominated eras) and recovering the today observed dark energy epoch. We develop the unified phantom cosmology where the same scalar plays the role of early time (phantom) inflaton and late-time Dark Energy. The recent transition from decelerating to accelerating phase is described too by the same scalar field. The (dark) matter may be embedded in this scheme, giving the natural solution of the coincidence problem. It is explained how the proposed unified phantom cosmology can be fitted against the observations which opens the way to define all the important parameters of the model.

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Cited by 3 Pith papers

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  1. ACT-DR6 consistent inflation in generalised entropic cosmology and $f(Q)$ gravity

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    Reconstruction produces explicit f(Q) and generalised-entropic inflation models (and scalar-coupled versions) whose slow-roll parameters match ACT-DR6 + Planck-BAO constraints on n_s and r.

  2. Is Phantom Divide Crossing in General Relativity Completely Impossible? Shortcomings in canonical and minimally coupled scalar field and Possible Solutions in $k$-essence Models

    gr-qc 2026-01 conditional novelty 4.0

    Phantom-to-quintessence crossing is impossible for a canonical scalar field, but can be engineered in finely-tuned k-essence theories where ghost instabilities are suppressed by a chosen kinetic coefficient.

  3. Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution

    gr-qc 2017-05 accept novelty 2.0

    Modified gravity theories supply viable mathematical frameworks for inflation, bounces, and dark energy eras that match observational data.