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Spike oscillations
- Autor(en)
- Johannes Markus Heinzle, Claes Uggla, Woei Chet Lim
- Abstrakt
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 this conjecture but with a modification: Apart from local BKL behavior there also exists formation of spatial structures ("spikes") at, and in the neighborhood of, certain spatial surfaces that break 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.
- Organisation(en)
- Gravitationsphysik
- Externe Organisation(en)
- Karlstad University, University of Waikato
- Journal
- Physical Review D
- Band
- 86
- Anzahl der Seiten
- 26
- ISSN
- 1550-7998
- DOI
- https://doi.org/10.1103/PhysRevD.86.104049
- Publikationsdatum
- 2012
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103036 Theoretische Physik, 103028 Relativitätstheorie, 103019 Mathematische Physik
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/8d2df660-2850-4d1d-8190-adc03a7f04dc