A Possible Interpretation of Dark Energy and Matter of the Expanding Universe
2009 (English)In: NEW DEVELOPMENTS IN NONLINEAR PLASMA PHYSICS / [ed] Eliasson B; Shukla PK, 2009, Vol. 1188, 345-355 p.Conference paper (Refereed)
At present the expanding universe is observed to be dominated by the not fully understood concepts of dark energy and matter, in a conceived almost flat Euclidian geometry. As one of the possible efforts to understand its global behaviour, the present paper attempts to explain these concepts in terms of the pressure force and gravity of a spherical photon gas cloud of zero point energy, in flat geometry. A difficult point concerns the frequency distribution of the zero point energy oscillations which leads to the unacceptable result of an infinite total energy. A modification of this distribution is therefore proposed which results in finite energy density. A corresponding equilibrium is investigated, as well as small dynamic deviations from it, to form a basis for a model of the expanding universe. Provided that the crucial points of the present approach hold true, the model satisfies the requirements of cosmic linear dimensions, results in an estimated acceleration of the expansion being of the order of the observed one, presents a possible solution of the coincidence problem of dark energy and matter, and provides one of the possible explanations of the observed excess of high-energy electrons and positrons in recent balloon and satellite experiments.
Place, publisher, year, edition, pages
2009. Vol. 1188, 345-355 p.
, AIP Conference Proceedings, ISSN 0094-243X
Expanding universe, dark energy, dark matter, zero point energy
IdentifiersURN: urn:nbn:se:kth:diva-29626ISI: 000280556100028ScopusID: 2-s2.0-71549127160ISBN: 978-0-7354-0754-1OAI: oai:DiVA.org:kth-29626DiVA: diva2:408549
ICTP Summer College on Plasma Physics/International Symposium on Cuttinh Edge Plasma Physics
QC 201104052011-04-052011-02-112011-04-05Bibliographically approved