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On the emergence of an expanding universe from a Lorentzian matrix model

Klinkhamer, F R

Abstract:
We present evidence that recent numerical results from the reduced classical equations of the Lorentzian IIB matrix model can be interpreted as corresponding to the emergence of an expanding universe. In addition, we propose an effective metric to describe the emerging (3+1)D spacetime. This metric gives, at all times, finite values for the Ricci and Kretschmann curvature scalars. With these results, we are able to give a heuristic discussion of the origin of the Universe in the context of the IIB matrix model.

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Verlagsausgabe §
DOI: 10.5445/IR/1000129918
Veröffentlicht am 19.02.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Theoretische Physik (ITP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 10.2020
Sprache Englisch
Identifikator ISSN: 2050-3911
KITopen-ID: 1000129918
Erschienen in Progress of theoretical and experimental physics
Verlag Oxford University Press (OUP)
Band 2020
Heft 10
Vorab online veröffentlicht am 24.10.2020
Nachgewiesen in Scopus
Web of Science
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