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Constant-roll inflation in f(T) teleparallel gravity

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dc.contributor.author Awad A.
dc.contributor.author El Hanafy W.
dc.contributor.author Nashed G.
dc.contributor.author Odintsov S.
dc.contributor.author Oikonomou V.
dc.date.accessioned 2019-01-22T20:53:23Z
dc.date.available 2019-01-22T20:53:23Z
dc.date.issued 2018
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/149277
dc.description.abstract © 2018 IOP Publishing Ltd and Sissa Medialab. We investigate in detail the implications of the constant-roll condition on the inflationary era of a scalar field coupled to a teleparallel f(T) gravity. The resulting cosmological equations constitute a reconstruction technique which enables us to find either the f(T) gravity which corresponds to a given cosmological evolution, or the Hubble rate of the cosmological evolution generated by a fixed f(T) gravity. We also analyze in some detail the phase space of the constant-roll teleparallel gravity and we discuss the physical significance of the resulting fixed points and trajectories. Also we calculate the observational indices of a theory with given f(T) gravity, and we discuss all the implications of the constant-roll condition on these. As we demonstrate, the resulting theory can be compatible with the current observational data, for a wide range of values of the free parameters of the theory.
dc.subject Cosmic singularity
dc.subject cosmological perturbation theory
dc.subject inflation
dc.subject modified gravity
dc.title Constant-roll inflation in f(T) teleparallel gravity
dc.type Article
dc.relation.ispartofseries-issue 7
dc.relation.ispartofseries-volume 2018
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS-2018-2018-7-SID85051803939


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  • Публикации сотрудников КФУ Scopus [22633]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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