Demonstration of Phase Shift of the Universe using an Effective Equation of State Parameter

Robin Francis¹ , E M Mohammed² , C. Sivakumar³

1. Dept. of Physics, Maharaja’s College( Mahatma Gandhi University), Ernakulam, Kerala, India.
2. Dept. of Physics, Maharaja’s College( Mahatma Gandhi University), Ernakulam, Kerala, India.
3. Dept. of Physics, Maharaja’s College( Mahatma Gandhi University), Ernakulam, Kerala, India.

Section:Research Paper, Product Type: Journal-Paper
Vol.6 , Issue.4 , pp.41-45, Apr-2020

Online published on Apr 30, 2020

Copyright © Robin Francis, E M Mohammed, C. Sivakumar . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
An effective pressure parameter for the fluid of universe of matter and dark energy is proposed and is shown to be a fine simple technique for demonstrating the shift of our flat universe from its phase of deceleration to acceleration that is believed to have occurred in the past and also the present state of acceleration. The two component fluid model proposed is consistent with the measured red shifts of galaxies and it describes the dynamics of matter era and dark era elegantly using a possible set of data. It is rather about an effective equation of state parameter and how phase shift could be introduced into the evolution of the universe than the accuracy of the set of values used/produced, which might be modified by a better data set.

Key-Words / Index Term :
Effective equation of state parameter, Fluid of universe, Dark energy, Flat universe, Redshift, Matter era, Dark era

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