Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Cosmic equilibrium of a photon gas in its gravitational field
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics. KTH, School of Electrical Engineering (EES), Centres, Alfvén Laboratory Centre for Space and Fusion Plasma Physics.
2008 (English)In: Advanced Studies in Theoretical Physics, ISSN 1313-1311, E-ISSN 1314-7609, Vol. 2, no 17, 837-843 p.Article in journal (Refereed) Published
Abstract [en]

Recent research indicates that the universe is expanding at an accelerated rate, and that dark energy and dark matter are underlying such a behaviour. In this paper the proposal is made that dark energy and matter are due to the zero point energy of a photon gas and its related Casimir force. For cosmical dimensions an equilibrium is shown to exist within such a gas, in the form of a balance between its pressure and gravitational forces. With commonly accepted values of the parameters involved, there is further an indication that the universe should be somewhat off such an equilibrium, and be governed by a pressure-dominated accelerated state. The obtained numerical results depend critically on the effective spectral contribution to the zero point pressure. Expansion at a constant rate is only possible at special conditions. This analysis can also be modified to apply to the hot photon gas prevailing during the earliest stages of the expansion, thereby leading to a strongly reduced characteristic radius within the parameter range of an equilibrium.

Place, publisher, year, edition, pages
2008. Vol. 2, no 17, 837-843 p.
Keyword [en]
Accelerated expansion, Casimir force, Cosmological constant, Dark energy and matter, Planck length, Universe
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-154162Scopus ID: 2-s2.0-59849103393OAI: oai:DiVA.org:kth-154162DiVA: diva2:756210
Note

QC 20141016

Available from: 2014-10-16 Created: 2014-10-14 Last updated: 2017-12-05Bibliographically approved

Open Access in DiVA

No full text

Scopus

Search in DiVA

By author/editor
Lehnert, Bo
By organisation
Fusion Plasma PhysicsAlfvén Laboratory Centre for Space and Fusion Plasma Physics
In the same journal
Advanced Studies in Theoretical Physics
Astronomy, Astrophysics and Cosmology

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 12 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf