Beautiful form of Geff in EiBI gravity via the Ward–Kodama entropy-area law

Publication date: January 2020Source: Physics of the Dark Universe, Volume 27Author(s): Narakorn KaewkhaoAbstractAn elegant form of the effective gravitational constant, Geff=2GNU2+V2, has been evaluated under the scope of EiBI Universe via the Wald-Kodama entropy-area law. ĠeffGeff together with the modified FLRW metric are used to conduct the evolutionary phases of the Universe. EiBI parameter was limited in the range 8.60×1047m2≲b≲4.31×1049m2 with the Lunar Laser Ranging (LLB) constraint. The multiplication of EiBI parameter and the cosmological constant are significantly confined in the range 1.12×10−4≲bΛ≲2.10×10−3; therefore, this showed the significant role of that values in the de Sitter phase as proposed by Geff=GN(1+bΛ).

Source: Physics of the Dark Universe - January 9, 2020 Category: Physics Source Type: research