Cargando…

Curvature force and dark energy

A curvature self-interaction of the cosmic gas is shown to mimic a cosmological constant or other forms of dark energy, such as a rolling tachyon condensate or a Chaplygin gas. Any given Hubble rate and deceleration parameter can be traced back to the action of an effective curvature force on the ga...

Descripción completa

Detalles Bibliográficos
Autores principales: Balakin, A B, Pavón, D, Schwarz, Dominik J, Zimdahl, W
Lenguaje:eng
Publicado: 2003
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1367-2630/5/1/385
http://cds.cern.ch/record/604491
_version_ 1780900093149315072
author Balakin, A B
Pavón, D
Schwarz, Dominik J
Zimdahl, W
author_facet Balakin, A B
Pavón, D
Schwarz, Dominik J
Zimdahl, W
author_sort Balakin, A B
collection CERN
description A curvature self-interaction of the cosmic gas is shown to mimic a cosmological constant or other forms of dark energy, such as a rolling tachyon condensate or a Chaplygin gas. Any given Hubble rate and deceleration parameter can be traced back to the action of an effective curvature force on the gas particles. This force self-consistently reacts back on the cosmological dynamics. The links between an imperfect fluid description, a kinetic description with effective antifriction forces, and curvature forces, which represent a non-minimal coupling of gravity to matter, are established.
id cern-604491
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2003
record_format invenio
spelling cern-6044912019-09-30T06:29:59Zdoi:10.1088/1367-2630/5/1/385http://cds.cern.ch/record/604491engBalakin, A BPavón, DSchwarz, Dominik JZimdahl, WCurvature force and dark energyAstrophysics and AstronomyA curvature self-interaction of the cosmic gas is shown to mimic a cosmological constant or other forms of dark energy, such as a rolling tachyon condensate or a Chaplygin gas. Any given Hubble rate and deceleration parameter can be traced back to the action of an effective curvature force on the gas particles. This force self-consistently reacts back on the cosmological dynamics. The links between an imperfect fluid description, a kinetic description with effective antifriction forces, and curvature forces, which represent a non-minimal coupling of gravity to matter, are established.astro-ph/0302150CERN-TH-2003-025oai:cds.cern.ch:6044912003-02-07
spellingShingle Astrophysics and Astronomy
Balakin, A B
Pavón, D
Schwarz, Dominik J
Zimdahl, W
Curvature force and dark energy
title Curvature force and dark energy
title_full Curvature force and dark energy
title_fullStr Curvature force and dark energy
title_full_unstemmed Curvature force and dark energy
title_short Curvature force and dark energy
title_sort curvature force and dark energy
topic Astrophysics and Astronomy
url https://dx.doi.org/10.1088/1367-2630/5/1/385
http://cds.cern.ch/record/604491
work_keys_str_mv AT balakinab curvatureforceanddarkenergy
AT pavond curvatureforceanddarkenergy
AT schwarzdominikj curvatureforceanddarkenergy
AT zimdahlw curvatureforceanddarkenergy