Preprint Article Version 6 Preserved in Portico This version is not peer-reviewed

On Spacetime Duality and Bounce Cosmology of a Dual Universe

Version 1 : Received: 14 May 2020 / Approved: 15 May 2020 / Online: 15 May 2020 (09:49:54 CEST)
Version 2 : Received: 18 May 2020 / Approved: 18 May 2020 / Online: 18 May 2020 (11:37:59 CEST)
Version 3 : Received: 12 June 2020 / Approved: 12 June 2020 / Online: 12 June 2020 (14:30:54 CEST)
Version 4 : Received: 25 August 2020 / Approved: 25 August 2020 / Online: 25 August 2020 (13:50:33 CEST)
Version 5 : Received: 23 September 2020 / Approved: 23 September 2020 / Online: 23 September 2020 (10:41:14 CEST)
Version 6 : Received: 7 October 2020 / Approved: 8 October 2020 / Online: 8 October 2020 (09:43:17 CEST)
Version 7 : Received: 12 October 2020 / Approved: 13 October 2020 / Online: 13 October 2020 (09:38:38 CEST)
Version 8 : Received: 16 December 2020 / Approved: 17 December 2020 / Online: 17 December 2020 (11:45:26 CET)
Version 9 : Received: 29 April 2021 / Approved: 29 April 2021 / Online: 29 April 2021 (09:10:40 CEST)
Version 10 : Received: 21 June 2021 / Approved: 21 June 2021 / Online: 21 June 2021 (11:43:55 CEST)
Version 11 : Received: 28 December 2022 / Approved: 29 December 2022 / Online: 29 December 2022 (11:31:00 CET)

A peer-reviewed article of this Preprint also exists.

Al-Fadhli, M.B. On Spacetime Duality and Bounce Cosmology of a Dual Universe. The 1st Electronic Conference on Universe 2021, doi:10.3390/ecu2021-09291. Al-Fadhli, M.B. On Spacetime Duality and Bounce Cosmology of a Dual Universe. The 1st Electronic Conference on Universe 2021, doi:10.3390/ecu2021-09291.


Precise astronomical measurements of the fine structure constant and universe expansion rate have revealed that they vary through specific directions, indicating an anisotropic universe. The curvature in complex spacetime can be interpreted as spatial warping evolution along with its travel through the imaginary time dimension. The complex spacetime worldlines of the universe spatial factor evolution through the imaginary time are utilised to model the universe anisotropy. The worldlines of a positively curved universe revealed both positive and negative solutions, which imply that matter and antimatter could be evolving in opposite directions as distinct universe sides, theoretically corroborating the axis of the cosmic microwave background and observed anisotropy. The model indicates that a nascent hyperbolic expansion is followed by a first phase of decelerating spatial expansion during the first 9 Gyr, and then, a second phase of accelerating expansion. The model potentially resolves the tension in Hubble parameter measurements, with a predicted density at the phase transition of 1.12>1. In addition, it predicts a final time-reversal phase of rapid spatial contraction leading to the Big Crunch, signalling a cyclic universe. On spacetime duality, the simulations of the spacetime continuum flux through its travel along with its predicted worldlines demonstrated the fast-orbital speed of stars resulting from an external momentum exerted on galaxies via the spatial curvature through the imaginary time dimension. These findings indicate that antimatter can exist as a distinct side, which influences the evolution of the universe; physically explaining the effects attributed to dark matter and dark energy.

Supplementary and Associated Material


Accelerated expansion; fast-rotation; flatness; parallel universe; duality; antimatter


Physical Sciences, Astronomy and Astrophysics

Comments (1)

Comment 1
Received: 8 October 2020
Commenter: Mohammed Al-Fadhli
Commenter's Conflict of Interests: Author
Dear Editor, 

I hope you are doing very well 

This version includes further improvement in the mathematical derivations and general text

Your support is much appreciated and lots of thanks

Kind regards,
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