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Planckian pre big bang phase of the Universe

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dc.contributor.author Sivaram, C
dc.contributor.author Arun, K
dc.contributor.author Rebecca, L
dc.date.accessioned 2020-11-26T15:46:22Z
dc.date.available 2020-11-26T15:46:22Z
dc.date.issued 2020-01
dc.identifier.citation Astrophysics and Space Science, Vol. 365, No. 1, 17 en_US
dc.identifier.uri http://prints.iiap.res.in/handle/2248/7424
dc.description Restricted Access © Springer The original publication is available at springerlink.com https://doi.org/10.1007/s10509-020-3732-8 en_US
dc.description.abstract The standard model of cosmology, although very successful, has problems with the very initial phase, such as the existence of a singularity when the density and curvature becomes infinite. In this work we propose a possible non-singular beginning of the Universe. From quantum considerations we set the earliest epoch to be the Planck epoch, which implies that the Universe did not begin with a singularity but with a finite minimal size of 10−3 cm. We suggest that the Universe initially began at the Planck length as a fluctuation having Planck energy expanding exponentially at constant Planck density, which then in turn accounts for the matter creation. All matter at the present epoch was created by the time the size of the Universe reached this minimal scale (10−3 cm) starting from Planck length. We call this the Planck scale inflation. We also consider a time varying cosmological constant. en_US
dc.language.iso en en_US
dc.publisher Springer en_US
dc.subject Pre big bang en_US
dc.subject Planck scale inflation en_US
dc.subject Planck epoch en_US
dc.subject Dark energy en_US
dc.subject Varying cosmological constant en_US
dc.title Planckian pre big bang phase of the Universe en_US
dc.type Article en_US


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