English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

A model for the Universe is proposed whose constituents are: (a) a darkenergy field modeled by a fermionic field non-minimally coupled with thegravitational field, (b) a matter field which consists of pressureless baryonicand dark matter fields and (c) a field which represents the radiation and theneutrinos. The coupled system of Dirac's equations and Einstein field equationsis solved numerically by considering a spatially flat homogeneous and isotropicUniverse. It is shown that the proposed model can reproduce the expectedred-shift behaviors of the deceleration parameter, of the density parameters ofeach constituent and of the luminosity distance. Furthermore, for small valuesof the red-shift the constant which couples the fermionic and gravitationalfields has a remarkable influence on the density and deceleration parameters.

Cosmological model with non-minimally coupled fermionic field