Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Cosmic equilibrium of a photon gas in its gravitational field
KTH, Skolan för elektro- och systemteknik (EES), Fusionsplasmafysik. KTH, Skolan för elektro- och systemteknik (EES), Centra, Alfvénlaboratoriet.
2008 (Engelska)Ingår i: Advanced Studies in Theoretical Physics, ISSN 1313-1311, E-ISSN 1314-7609, Vol. 2, nr 17, 837-843 s.Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
2008. Vol. 2, nr 17, 837-843 s.
Nyckelord [en]
Accelerated expansion, Casimir force, Cosmological constant, Dark energy and matter, Planck length, Universe
Nationell ämneskategori
Astronomi, astrofysik och kosmologi
Identifikatorer
URN: urn:nbn:se:kth:diva-154162Scopus ID: 2-s2.0-59849103393OAI: oai:DiVA.org:kth-154162DiVA: diva2:756210
Anmärkning

QC 20141016

Tillgänglig från: 2014-10-16 Skapad: 2014-10-14 Senast uppdaterad: 2017-12-05Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas

Scopus

Sök vidare i DiVA

Av författaren/redaktören
Lehnert, Bo
Av organisationen
FusionsplasmafysikAlfvénlaboratoriet
I samma tidskrift
Advanced Studies in Theoretical Physics
Astronomi, astrofysik och kosmologi

Sök vidare utanför DiVA

GoogleGoogle Scholar

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 13 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf