The no-boundary proposal via the five-dimensional Friedmann-Lemaitre-Robertson-Walker model
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🌀 gr-qc
keywords
proposalfive-dimensionalfriedmann-lemaitre-robertson-walkermodelno-boundaryalternativeapproachbeginning
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Hawking's proposal that the Universe has no temporal boundary and hence no beginning depends on the notion of imaginary time and is usually referred to as the "no-boundary proposal." This paper discusses a simple alternative approach by means of the five-dimensional Friedmann-Lemaitre-Robertson-Walker model.
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