Time-symmetric cosmology and the opacity of the future light cone

P. C.W. Davies; J. Twamley

doi:10.1088/0264-9381/10/5/011

Time-symmetric cosmology and the opacity of the future light cone

P. C.W. Davies, J. Twamley

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

If the arrow of time reverses in a recontracting universe it could produce observable electromagnetic effects. The authors argue that the existing observational data offer strong evidence against recent versions of time-symmetric universe models, assuming the universe is essentially transparent on the future light cone. They investigate this assumption for a simple recontracting Friedmann model.

Original language	English (US)
Article number	011
Pages (from-to)	931-945
Number of pages	15
Journal	Classical and Quantum Gravity
Volume	10
Issue number	5
DOIs	https://doi.org/10.1088/0264-9381/10/5/011
State	Published - Dec 1 1993
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1088/0264-9381/10/5/011

Cite this

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abstract = "If the arrow of time reverses in a recontracting universe it could produce observable electromagnetic effects. The authors argue that the existing observational data offer strong evidence against recent versions of time-symmetric universe models, assuming the universe is essentially transparent on the future light cone. They investigate this assumption for a simple recontracting Friedmann model.",

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AB - If the arrow of time reverses in a recontracting universe it could produce observable electromagnetic effects. The authors argue that the existing observational data offer strong evidence against recent versions of time-symmetric universe models, assuming the universe is essentially transparent on the future light cone. They investigate this assumption for a simple recontracting Friedmann model.

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Time-symmetric cosmology and the opacity of the future light cone

Abstract

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