Radiation Dominated Universe for Jordan-Brans-Dicke Cosmology

Details Radiation Dominated Universe for Jordan-Brans-Dicke Cosmology Radiation Dominated Universe for Jordan-Brans-Dicke Cosmology

2010-06-22

arxiv.org/abs/1006.4252v3

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

Jordan-Brans-Dicke cosmology with a standard kinetic term for the scalar field and no mass term has the same radiation dominated solution as standard Einstein cosmology without the cosmological constant. Because of this, the primordial nucleosynthesis (Big - Bang nucleosynthesis) result obtained for standard cosmology remains the same for Jordan-Brans-Dicke cosmology. We show that Jordan-Brans-Dicke cosmology with a mass term for the scalar field as well as explaining dark energy for the present era, can also explain radiation dominated cosmology for the primordial nucleosynthesis era.

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