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Nonsingular rainbow universes
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DOI：10.1088/1475-7516/2013/10/052.png)
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摘要
En 中文
In this work, we study FRW cosmologies in the context of gravity rainbow. We discuss the general conditions for having a nonsingular FRW cosmology in gravity rainbow. We propose that gravity rainbow functions can be fixed using two known modified dispersion relation (MDR), which have been proposed in literature. The first MDR was introduced by Amelino-Camelia, et el. in and the second was introduced by Magueijo and Smolin in [24] Studying these FRW-like cosmologies, after fixing the gravity rainbow functions, leads to nonsingular solutions which can be expressed in exact forms.
Keyword:
modified gravity
quantum gravity phenomenology
physics of he early universe
cosmology of theories beyond the SM
期刊
IF:
5.9
论文数:
1.3W
被引数:
4.7W
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