Pith. sign in

REVIEW 2 cited by

Dynamic vacuum variable and equilibrium approach in cosmology

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 0806.2805 v7 pith:ZK47ZOJK submitted 2008-06-17 gr-qc astro-phhep-th

Dynamic vacuum variable and equilibrium approach in cosmology

F.R. Klinkhamer , G.E. Volovik This is my paper
classification gr-qc astro-phhep-th
keywords vacuumdensityenergytheoryuniversevariableamplitudefour-form
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

A modified-gravity theory is considered with a four-form field strength F, a variable gravitational coupling parameter G(F), and a standard matter action. This theory provides a concrete realization of the general vacuum variable q as the four-form amplitude F and allows for a study of its dynamics. The theory gives a flat Friedmann-Robertson-Walker universe with rapid oscillations of the effective vacuum energy density (cosmological "constant"), whose amplitude drops to zero asymptotically. Extrapolating to the present age of the Universe, the order of magnitude of the average vacuum energy density agrees with the observed near-critical vacuum energy density of the present universe. It may even be that this type of oscillating vacuum energy density constitutes a significant part of the so-called cold dark matter in the standard Friedmann-Robertson-Walker framework.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 2 Pith papers

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

  1. Thermodynamics of homogeneous Universes: de Sitter, Bonnor-Melvin and static Einstein

    gr-qc 2026-05 unverdicted novelty 5.0

    Three homogeneous universes with distinct matter content obey the same thermodynamic equation for energy density, implying vanishing cosmological constant in vacuum.

  2. Thermodynamics of homogeneous Universes: de Sitter, Bonnor-Melvin and static Einstein

    gr-qc 2026-05 unverdicted novelty 4.0

    De Sitter, Bonnor-Melvin-Λ and static Einstein universes share the same thermodynamic energy-density equation despite dissimilar matter fields, yielding zero cosmological constant in Minkowski vacuum.