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Hyperbolic Cardassian universe (2014)

Zhang Xu-Ning

Institute of Physics (IOP)

In: Chinese Physics C

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Publication Date: 2014-07-24

Description: We propose a hyperbolic function form of the Cardassian component in the Cardassian model. Using the repartition of this Cardassian component, we can obtain a non-zero gravitational interaction between the time derivative of Ricci scalar curvature and the baryon/lepton number current in the radiation-dominated universe. Furthermore, the other term that acts like a non-zero cosmological constant would give an accelerated expansion of current universe and the features of this model do not violate our desired requirements.

Print ISSN: 1674-1137

Topics: Physics

Published by Institute of Physics (IOP)

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