Pith. sign in

REVIEW 5 cited by

Brane cosmological evolution in a bulk with cosmological constant

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv hep-th/9910219 v2 pith:X2CAZXZR submitted 1999-10-27 hep-th astro-phgr-qchep-ph

Pierre Binetruy , Cedric Deffayet , Ulrich Ellwanger (LPTHE , Orsay) , David Langlois (DARC , Meudon) This is my paper · ORCID
classification hep-thastro-phgr-qchep-ph
keywords branecosmologicalevolutionconstantmetricbulkdimensionfifth
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

We consider the cosmology of a ``3-brane universe'' in a five dimensional (bulk) space-time with a cosmological constant. We show that Einstein's equations admit a first integral, analogous to the first Friedmann equation, which governs the evolution of the metric in the brane, whatever the time evolution of the metric along the fifth dimension. We thus obtain the cosmological evolution in the brane for any equation of state describing the matter in the brane, without needing the dependence of the metric on the fifth dimension. In the particular case $p = w \rho$, $(w = constant)$, we give explicit expressions for the time evolution of the brane scale factor, which show that standard cosmological evolution can be obtained (after an early non conventional phase) in a scenario \`a la Randall and Sundrum, where a brane tension compensates the bulk cosmological constant. We also show that a tiny deviation from exact compensation leads to an effective cosmological constant at late time. Moreover, when the metric along the fifth dimension is static, we are able to extend the solution found on the brane to the whole spacetime.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 5 Pith papers

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

  1. A new look at multi-gravity and dimensional deconstruction

    hep-th 2025-01 conditional novelty 7.0 of 10

    Keeping the lapse free in deconstruction yields scalar-tensor multi-gravity, which reproduces 5D Randall-Sundrum brane cosmology equations in the continuum limit.

  2. Massive Graviton Dark Matter from a Gapped Continuum

    hep-th 2026-07 conditional novelty 6.0 of 10

    Radiative corrections pull an isolated, long-lived massive graviton out of the gapped linear-dilaton continuum, giving a sub-MeV dark-matter candidate that can coexist with a holographic fluid component.

  3. Inflation with a Growing Fifth Dimension

    hep-th 2025-12 conditional novelty 6.0 of 10

    Inflation from a UV-brane inflaton in a warped 5D bulk with an IR brane predicts a blue-tilted low-k scalar spectrum and oscillating tensor features because the early adiabatic modes come from the radion.

  4. Cosmological tensions in Proca-Nuevo theory

    hep-th 2025-11 conditional novelty 6.0 of 10

    Fitting a one-parameter vector-tensor dark energy model to CMB, BAO, and supernova data reduces the Hubble tension to about 1.5–2σ, but the preference over ΛCDM is weak and disappears once full perturbations are included.

  5. Braneworld Neutron Stars: Constraining Brane Tension with Observational Data

    gr-qc 2025-01 conditional novelty 6.0 of 10

    Using six neutron star equations of state, braneworld gravity can support the 2.5 to 2.67 solar mass object seen in GW190814 and gives a lower bound on brane tension near 2×10^37 dyne/cm^2.

Pith tools