Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Are Cosmic Isotropy Limits from Analyses of the Cosmic Microwave Background Credible?

Version 1 : Received: 18 November 2020 / Approved: 19 November 2020 / Online: 19 November 2020 (20:45:43 CET)

How to cite: Longo, M.J. Are Cosmic Isotropy Limits from Analyses of the Cosmic Microwave Background Credible?. Preprints 2020, 2020110520 (doi: 10.20944/preprints202011.0520.v1). Longo, M.J. Are Cosmic Isotropy Limits from Analyses of the Cosmic Microwave Background Credible?. Preprints 2020, 2020110520 (doi: 10.20944/preprints202011.0520.v1).

Abstract

Recent analyses of cosmic microwave background (CMB) maps have been interpreted as demonstrating that the Universe was born without an initial rotation. However, these analyses are based on unrealistic models and do not contain essential ingredients such as quantum effects, the strong, weak and gravitational interactions between the components, their intrinsic spins and magnetic moments, as well as primordial black holes. If the Universe was born spinning these effects would distribute the initial spin angular momentum among its components long before the CMB forms at recombination. A primordial spin would now appear as a nonzero total angular momentum of its components along the direction of the original spin, and a primordial large-scale rotation would no longer be apparent. The existence of a special axis or direction would break a fundamental symmetry assumed in general relativity, cosmic isotropy, and a net angular momentum implies a cosmic parity violation.

Subject Areas

Large-scale structure of Universe; cosmic background radiation; cosmology; early Universe

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