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Quantum deSitter cosmology and phantom matter

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arxiv hep-th/0303117 v3 pith:I2KBS3RA submitted 2003-03-13 hep-th astro-ph

Shin'ichi Nojiri , Sergei D. Odintsov This is my paper · ORCID
classification hep-thastro-ph
keywords phantomquantumdesittermatteruniversedrivenmodelnariai
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We consider deSitter universe and Nariai universe induced by quantum CFT with classical phantom matter and perfect fluid. The model represents the combination of trace-anomaly driven inflation and phantom driven deSitter universe. The similarity of phantom matter with quantum CFT indicates that phantom scalar may be the effective description for some quantum field theory. It is demonstrated that it is easier to achieve the acceleration of the scale factor preserving the energy conditions in such unified model. Some properties of unified theory (anti-gravitating solutions, negative ADM mass Nariai solution, relation with steady state) are briefly mentioned.

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Cited by 6 Pith papers

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

  1. Anomalous Decay Rate and Greybody Factors for Regular Black Holes with Scalar Hair

    gr-qc 2026-02 unverdicted novelty 6.0 of 10

    Regular black holes with scalar hair exhibit anomalous decay rates for massive scalar perturbations, with longest-lived modes switching to lower angular momentum above a critical mass.

  2. Observational Tests of Regular Black Holes with Scalar Hair and their Stability

    gr-qc 2025-10 unverdicted novelty 5.0 of 10

    Regular black holes with phantom scalar hair are constrained by Solar System and EHT observations, with exact relations linking photon sphere Lyapunov exponent to shadow size and impact parameter.

  3. Quintom Model Perturbations

    astro-ph.CO 2026-06 unverdicted novelty 4.0 of 10

    A two-field quintom model reproduces w0waCDM perturbation features and is mildly favored over it in Bayesian fits to BAO, CMB, and SNIa data.

  4. Effective Phantom Dark Energy: What Cosmological Reconstruction Does and Does Not Imply

    astro-ph.CO 2026-05 unverdicted novelty 3.0 of 10

    Effective phantom dark energy is a background-level reconstruction that does not imply fundamental pathologies such as ghost instabilities or null energy condition violation by the underlying stress tensor.

  5. Exploring Hubble Tension Alleviation through Neutrino-Coupled Perturbed $f(R)$ Gravity

    gr-qc 2025-02 reject novelty 2.0 of 10

    A fit of Hu-Sawicki f(R) gravity with a fitted neutrino interaction to CMB, lensing, BAO, CC, and Pantheon data returns H0 near 70 km/s/Mpc, partially easing but not resolving the Hubble and S8 tensions.

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

    gr-qc 2017-05 accept novelty 2.0 of 10

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

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