How Can the Modified Dispersion Relation Affect Friedmann Equations? | Zendy

A. S. Sefiedgar | Zendy

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How Can the Modified Dispersion Relation Affect Friedmann Equations?

Author(s) -

A. S. Sefiedgar

Publication year - 2014

Publication title -

advances in high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.59

H-Index - 49

eISSN - 1687-7365

pISSN - 1687-7357

DOI - 10.1155/2014/727245

Subject(s) - friedmann–lemaître–robertson–walker metric , friedmann equations , physics , universe , entropy (arrow of time) , gravitation , apparent horizon , mathematical physics , classical mechanics , thermodynamics , dark energy , cosmology , quantum mechanics , spacetime , event horizon

The appearance of the quantum gravitational effects in a very high energy regime necessitates some corrections to the thermodynamics of Friedmann-Robertson-Walker (FRW) universe. The modified dispersion relation (MDR) as a phenomenological approach to investigate the high energyphysics provides a perturbation framework upon which the FRW universe thermodynamics can be corrected. In this letter, we obtain the corrected entropy-area relation of the apparent horizon of FRW universe by utilizing the extra dimensional form of MDR, leading to the modification of Friedmann equations. The influence of MDR on the Friedmann equations provides a good insight into the understanding of the FRW universe dynamics in the final quantum gravity theory

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