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Akram Sadat Sefiedgar

Academic rank: Assistant Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Science
Address:
Phone: 01135302435

Research

Title
How Can the Modified Dispersion Relation Affect Friedmann Equations?
Type
JournalPaper
Keywords
Friedmann equation, MDR
Year
2014
Journal Advances in High Energy Physics
DOI
Researchers Akram Sadat Sefiedgar

Abstract

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 energy physics provides a perturbation framework uponwhich the FRWuniverse thermodynamics can be corrected. In this letter, we obtain the corrected entropy-area relation of the apparent horizon of FRWuniverse by utilizing the extra dimensional formofMDR, leading to the modification of Friedmann equations. The influence ofMDR on the Friedmann equations provides a good insight into the understanding of the FRWuniverse dynamics in the final quantum gravity theory.