Pushing the limits of time beyond the Big Bang singularity: The branch cut universe
C. A. Z. Vasconcellos, P. O. Hess, D. Hadjimichef, B. Bodmann, M., Razeira, G. L. Volkmer

TL;DR
This paper explores a theoretical model extending time beyond the Big Bang singularity by complexifying the FLRW metric, proposing a branch cut universe with multiple superposed universes.
Contribution
It introduces a novel approach using complexified FLRW metrics to conceptualize a universe beyond the initial singularity, expanding the theoretical framework of cosmology.
Findings
Complexification of the FLRW metric allows modeling of a branch cut universe.
Proposes a conceptual framework for multiple superposed universes.
Extends the mathematical tools of singular semi-Riemannian geometry to cosmology.
Abstract
In this article we follow a previously developed theoretical approach, based in the tools of the singular semi-Riemannian geometry, to push the limits of time beyond the primordial spacetime singularity. By complexifying the Friedmann-Lema\^itre-Robertson-Walker (FLRW) metric and Friedmann's equations we model a branch cut universe, in which the cosmic FLRW metric scale factor is analytically continued to the complex plane, and becomes equivalent from a conceptual point of view of describing a hypothetical general metric of maximally symmetric and homogeneous superposed multiple universes.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsCosmology and Gravitation Theories · Relativity and Gravitational Theory · Galaxies: Formation, Evolution, Phenomena
