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Spike oscillations
University of Vienna, Austria. (Physics)
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering. (Fysik)
University of Waikato, New Zealand. (Mathematics)
2012 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 86, 104049-104075 p.Article in journal (Refereed) Published
Abstract [en]

According to Belinskii, Khalatnikov and Lifshitz (BKL), a generic spacelike singularity is characterized by asymptotic locality: Asymptotically, toward the singularity, each spatial point evolves independently from its neighbors, in an oscillatory manner that is represented by a sequence of Bianchi type I and II vacuum models. Recent investigations support a modified conjecture: The formation of spatial structures (`spikes') breaks asymptotic locality. The complete description of a generic spacelike singularity involves spike oscillations, which are described by sequences of Bianchi type I and certain inhomogeneous vacuum models. In this paper we describe how BKL and spike oscillations arise from concatenations of exact solutions in a Hubble-normalized state space setting, suggesting the existence of hidden symmetries and showing that the results of BKL are part of a greater picture

Place, publisher, year, edition, pages
College Park, MD: APS , 2012. Vol. 86, 104049-104075 p.
National Category
Astronomy, Astrophysics and Cosmology
Research subject
Physics
Identifiers
URN: urn:nbn:se:kau:diva-15614DOI: 10.1103/PhysRevD.86.104049ISI: 000311279900002OAI: oai:DiVA.org:kau-15614DiVA: diva2:567852
Funder
Swedish Research Council, 621-2009-4163
Available from: 2012-11-14 Created: 2012-11-14 Last updated: 2016-10-06Bibliographically approved

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Publisher's full texthttp://arxiv.org/abs/1206.0932http://prd.aps.org/pdf/PRD/v86/i10/e104049

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