期刊
ASTROPHYSICS AND SPACE SCIENCE
卷 352, 期 1, 页码 281-288出版社
SPRINGER
DOI: 10.1007/s10509-014-1897-8
关键词
Viscous fluids; Bounce cosmology
We investigate the bounce cosmology induced by inhomogeneous viscous fluids in FRW space-time (non necessarily flat), taking into account the early-time acceleration after the bounce. Different forms for the scale factor and several examples of fluids will be considered. We also analyze the relation between bounce and finite-time singularities and between the corresponding fluids realizing this scenarios. In the last part of the work, the study is extended to the framework of f(R)-modified gravity, where the modification of gravity may also be considered as an effective (viscous) fluid producing the bounce.
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