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arXiv · 1508.06475

Bouncing universe with modified dispersion relation

Wen-Jian Pan·Yong-Chang Huang
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Abstract

In this paper, employing the modified dispersion relation, we have derived the general modified Friedmann equations and the corresponding modified entropy relations for the Friedmann-Robertson-Walker (FRW) Universe. In this setup, we find that when the big bounce happens, its energy scale and its corresponding modified entropy behavior are sensitive to the value of $k$. In contrast to the previous work with $k=0$, our work mainly demonstrates that the bouncing behavior for the closed Universe with $k=1$ appears at the normal energy limit of the modified dispersion relation introduced, and when bouncing phenomenon is in presence, its modified entropy is just equal to zero. Surprisingly, when $k=-1$, the bouncing behavior is in absence.

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Wen-Jian Pan, Yong-Chang Huang. 2015-08-26. Bouncing universe with modified dispersion relation. https://doi.org/10.1007/s10714-016-2138-y

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