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Cosmological model with fermion and tachyon fields

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dc.contributor.author Akhmetova, G.A.
dc.contributor.author Razina, O.V.
dc.contributor.author Tsyba, P.Yu.
dc.contributor.author Meirbekov, B.
dc.date.accessioned 2023-08-15T03:39:33Z
dc.date.available 2023-08-15T03:39:33Z
dc.date.issued 2019
dc.identifier.issn 2616-6836
dc.identifier.uri http://rep.enu.kz/handle/enu/4814
dc.description.abstract This article discusses a cosmological model with a fermion and tachyon field in four dimensions together with the homogeneous, isotropic and flat Friedmann-Robertson-Walker Universe. A system of equations of motion has been found for this model. Describe a power solution for the scale factor. Studied the energy conditions. The parameters that have been obtained satisfy the latest observational data for α > 1 . The pressure in the model under consideration is negative and tends to zero later. Found energy density and pressure, which correspond to the dark energy of the model under consideration, the energy conditions. The parameter of the equation of state ω , the deceleration parameter q , the jerk parameter j are found. Built graphics for the energy density ρ and pressure p , as well as for the equation of state parameter ω , deceleration parameter q and jerk parameter j . ru
dc.language.iso en ru
dc.publisher L.N.Gumilyov Eurasian National University ru
dc.subject Fermion field ru
dc.subject tachyon field ru
dc.subject energy conditions ru
dc.subject equation of state ru
dc.subject deceleration parameter ru
dc.subject jerk parameter ru
dc.title Cosmological model with fermion and tachyon fields ru
dc.type Article ru


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