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arXiv · 1709.04055

Bouncing universe of entropy-corrected Friedmann equations

Amin. Salehi·Mojtaba. Mahmoudi fard
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Abstract

The investigation of quantum gravity effects in order to avoid the big bang singularity is a requisite, so that the idea of oscillating universes is introduced as an alternative for standard cosmological model. Therefore, the Friedmann equations arising from the quantum corrections of entropy-area relation provide the possibility of studying the oscillating universes. Addition to necessity of surveying the bouncing solutions, however, the values of unknown constant parameters are still a matter of open debate. In this paper, we consider modified Friedmann equations with logarithmic entropy corrected to evaluate singular-free cosmology solutions for any value of so- called constant pre-factors and all kinds of curved universes. The results are argued using the dynamical system techniques and by employing the phase plane analysis for full classification of the nonsingular evolutions.

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Amin. Salehi, Mojtaba. Mahmoudi fard. 2017-09-14. Bouncing universe of entropy-corrected Friedmann equations. https://doi.org/10.1140/epjc%2Fs10052-018-5727-y

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