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Photon gas dynamics in the early universe
Umeå University, Faculty of Science and Technology, Department of Physics.
2008 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 659, no 1-2, 54-57 p.Article in journal (Refereed) Published
Abstract [en]

Quantum electrodynamics predicts that photons undergo one-loop scattering. The combined effect of this on the behaviour of a photon gas for temperatures above similar to 10(10) K results in a softening of the equation of state. We calculate the effect this has on the effective equation of state in the early universe, taking into account all the species of the Standard Model. The change to the dynamics of the early universe is discussed.

Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2008. Vol. 659, no 1-2, 54-57 p.
Keyword [en]
black holes
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-18728DOI: 10.1016/j.physletb.2007.10.049ISI: 000252878000008OAI: oai:DiVA.org:umu-18728DiVA: diva2:174650
Available from: 2009-02-24 Created: 2009-02-24 Last updated: 2017-12-13Bibliographically approved

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