Cosmic coincidence problem and variable constants of physics

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dc.creatorJamil, Mubasher
dc.creatorRahaman, Farook
dc.creatorKalam, Mehedi
dc.date2008-09-25
dc.date2009-02-28
dc.date.accessioned2026-07-07T12:51:17Z
dc.date.available2026-07-07T12:51:17Z
dc.descriptionThe standard model of cosmology is investigated using time dependent cosmological constant $Λ$ and Newton's gravitational constant $G$. The total energy content is described by the modified Chaplygin gas equation of state. It is found that the time dependent constants coupled with the modified Chaplygin gas interpolate between the earlier matter to the later dark energy dominated phase of the universe. We also achieve a convergence of parameter $ω\to-1$, with minute fluctuations, showing an evolving $ω$. Thus our model fairly alleviates the cosmic coincidence problem which demands $ω=-1$ at present time.
dc.description27 pages, 15 figures
dc.identifierhttps://arxiv.org/abs/0809.4314
dc.identifierhttp://arxiv.org/abs/0809.4314
dc.identifierEur.Phys.J.C60:149-156,2009
dc.identifierdoi:10.1140/epjc/s10052-009-0865-x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/222944
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleCosmic coincidence problem and variable constants of physics
dc.typetext

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