Pushing the limits of time beyond the Big Bang singularity: Scenarios for the branch cut universe
| Autor: | M. Razeira, B. E. J. Bodmann, Dimiter Hadjimichef, G. L. Volkmer, Peter O. Hess, César A. Z. Vasconcellos |
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| Rok vydání: | 2021 |
| Předmět: |
Big Bang
010308 nuclear & particles physics General relativity media_common.quotation_subject Astronomy and Astrophysics 01 natural sciences Universe Theoretical physics Singularity Space and Planetary Science 0103 physical sciences Wick rotation Point (geometry) 010303 astronomy & astrophysics Big Bounce Branch point media_common Mathematics |
| Zdroj: | Astronomische Nachrichten. 342:776-787 |
| ISSN: | 1521-3994 0004-6337 |
| DOI: | 10.1002/asna.202113993 |
| Popis: | In this contribution we identify two scenarios for the evolutionary branch cut universe. In the first scenario, the universe evolves continuously from the negative complex cosmological time sector, prior to a primordial singularity, to the positive one, circumventing continuously a branch cut, and no primordial singularity occurs in the imaginary sector, only branch points. In the second scenario, the branch cut and branch point disappear after the realisation of the imaginary component of the complex time by means of a Wick rotation, which is replaced by the thermal time. In the second scenario, the universe has its origin in the Big Bang, but the model contemplates simultaneously a mirrored parallel evolutionary universe going backwards in the cosmological thermal time negative sector. A quantum formulation based on the WDW equation is sketched and preliminary conclusions are drawn. |
| Databáze: | OpenAIRE |
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