Dark Energy from Virtual Gravitons (GCDM Model vs ΛCDM Model)

Leonid Marochnik; Daniel Usikov

doi:10.20944/preprints202206.0375.v1

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preprints.org > physical sciences > astronomy and astrophysics > doi: 10.20944/preprints202206.0375.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Dark Energy from Virtual Gravitons (GCDM Model vs ΛCDM Model)

Leonid Marochnik

^* and

Daniel Usikov

Version 1 : Received: 26 June 2022 / Approved: 28 June 2022 / Online: 28 June 2022 (04:22:26 CEST)

A peer-reviewed article of this Preprint also exists.

Marochnik, L.S.; Usikov, D.A. Dark Energy from Virtual Gravitons (GCDM Model vs. ΛCDM Model). Universe 2022, 8, 464. Marochnik, L.S.; Usikov, D.A. Dark Energy from Virtual Gravitons (GCDM Model vs. ΛCDM Model). Universe 2022, 8, 464.

Abstract

The dark energy from virtual gravitons is consistent with observational data on supernova with the same accuracy as the CDM model. The fact that virtual gravitons are capable of producing of a de Sitter accelerated expansion of the FLRW universe was established in 2008 (see references). The combination of conformal non–invariance with zero rest mass of gravitons (unique properties of the gravitational field) leads to the appearance of graviton dark energy in a mater-dominated era. Тhis fact explains the relatively recent appearance of the dark energy and answers the question “Why now?”. The transition redshifts (where deceleration is replaced by acceleration) that follow from the graviton theory are consistent with model independent transition redshifts derived from observational data. Prospects for testing the GCDM model (the graviton model of dark energy where G stands for gravitons) and comparison with the CDM model are discussed.

Keywords

dark energy; virtual gravitons; supernova observations

Subject

Physical Sciences, Astronomy and Astrophysics

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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