TITLE:
Electromagnetic Radiation from the Antimatter Universe: A Kerr Metric Approach
AUTHORS:
Tharwat Mahmoud El-Sherbini
KEYWORDS:
Cosmology, Antimatter, Dark Energy, High Energy Astrophysics
JOURNAL NAME:
Journal of High Energy Physics, Gravitation and Cosmology,
Vol.11 No.4,
September
28,
2025
ABSTRACT: An antimatter universe that serves in solving the problem of matter-antimatter asymmetry and might shed light on the nature of dark energy was proposed in a previous publication. The present article is an extension of our previous study, where we consider the emitted electromagnetic radiation from the spherical anti-universe as a synchrotron type of radiation that resulted from the centripetal accelerations of the charges on its surface. The radiation power from the relativistic rotating charges is maximized at the equatorial plane and computed together with the direction of the emitted beams of radiation and their angular spread. The base line for the power calculations is done using the classical relativistic Larmor formula in flat spacetime. The general relativity corrections to the classical one due to the large curvature around the compact spherical anti-universe in its local spacetime are calculated. The evaluated general relativistic refinements of the results are done by introducing the axisymmetric exact solution of Einstein’s field equation, specifically: The Kerr metric, which is suited to describe space time around celestial rotating objects. The refined calculations took into account the extreme rotation of the anti-universe, which flattens the spherical shape of spacetime around its surface into an oblate shape, causing frame dragging and other relativistic effects. The radiation was mainly dominated by the electromagnetic beams emitted from the free positron charges along the equatorial plane of the anti-universe. The stability of the anti-universe as a compact celestial object under a strong gravitational force and a possible outward internal pressure was discussed, with the study also suggesting that the anti-universe might be consistent with a Kerr black hole. This article is an attempt to explore the spacetime around the antimatter universe and to investigate the effect of the emitted electromagnetic radiation, which permeates and influences our universe. Furthermore, it can be considered as one of the alternative explanations for the observed phenomenon of the cosmic microwave background (CMB) radiation that fills our universe and supports the BIG Bang theory. Moreover, the present research may contribute to the ongoing discussions on the origin of dark energy and put a new perspective on the Hubble tension problem, thus paving the way to an understanding of the forces driving the fast expansion of our universe.