Relativity and Cosmology

   

Cosmological Constant from Asymptotically Vanishing Particle-Antiparticle Asymmetry in a Rotating Brane Universe

Authors: Kabir Adinoyi Umar

Using an interpretation of special relativity in the context of a rotating brane universe, it is shown that an asymptotically vanishing particle antiparticle asymmetry described by a cosmological factor Г can result such that 0 < Г < 1. We discus a cancellation scenario in which an asymptotically vanishing effective cosmological constant Λ arise from this asymmetry where virtual particles and antiparticles contribute attractive and repulsive terms respectively to the quantum vacuum. The asymmetry is fundamentally in the form of difference in speed limit c and for particles and antiparticles which in this scenario, exists as excitations of the opposite surfaces of a brane universe rotating along its time dimension. Using estimates from quantum field theory and the observed value of dark energy density, the cosmological factor is constrained to be ≈ 10-120 in the present universe. Observational constraint may also come from precision measurement of spatial curvature. Г ≈ 1 obtainable in the early universe would produce large effective cosmological constant (Λ ~ 1068 m-2) capable of driving inflation and possibly the baryon asymmetry of our universe.

Comments: 12 Pages. Based on a paper presentation titled: "vacuum relativitiy: the origin of the content of our universe" at the 34th annual conference of the Nigerian Institute of Physics on the 14th of October 2011 at Obafemi Awolowo University Ile-Ife.

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[v1] 2012-02-14 09:17:10

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