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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We investigate the evolution of a flat Emergent Universe obtained with anon-linear equation of state (nEoS) in Einstein's general theory of Relativity.The nEoS is equivalent to three different types of barotropic cosmic fluids,which are found from the nEoS parameter. The EU began expanding initially withno interaction among the cosmic fluids. Assuming an interaction that sets in ata time $t \geq t_i$ in the fluid components, we study the evolution of the EUthat leads to the present observed universe. We adopt a dynamical systemanalysis method to obtain the critical points of the autonomous system forstudying the evolution of an EU with or without interaction in fluidcomponents. We also study the stability of critical points and draw the phaseportraits. The density parameters and the corresponding cosmological parametersare obtained for both the non-interacting and interacting phases of theevolution dynamics.

Dynamical stability and phase space analysis of an Emergent Universe with non-interacting and interacting fluids