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Paper detail

Emergent Universe Scenario in Modified Gauss-Bonnet Gravity

We present modified Gauss-Bonnet gravity without matter in four dimensions which accommodates flat emergent universe (EU) obtained in Einstein's general theory of gravity with a non-linear equation of state. The EU model is interesting which is free from big-bang singularity with other observed features of the universe. It is assumed that the present universe emerged out from a static Einstein universe phase exists in the infinite past. To obtain a flat EU model we reconstructed mimetic modified $f(G)$-gravity ($G$ representing Gauss-Bonnet terms) without matter. The functional form of f(G)-gravity is determined which accommodates the early inflation and late accelerating phases without matter.

preprint2020arXivOpen access
B. C. PaulS. D. MaharajA. Beesham
astro-ph.COgr-qc
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B. C. PaulS. D. MaharajA. Beesham

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