Five-Dimensional Cosmological Model with Variable G and Λ
H. Baysal1, .I. Yilmaz2
1Department Secondary Science and Mathematics Education, Education Faculty, Canakkale Onsekiz Mart University, 17100 Canakkale, Turkey2Department of Physics, Art and Science Faculty, Canakkale Onsekiz Mart University, 17020 Canakkale, Turkey
Five-Dimensional Cosmological Model with Variable G and Λ
H. Baysal1;.I. Yilmaz2
1Department Secondary Science and Mathematics Education, Education Faculty, Canakkale Onsekiz Mart University, 17100 Canakkale, Turkey2Department of Physics, Art and Science Faculty, Canakkale Onsekiz Mart University, 17020 Canakkale, Turkey
摘要Einstein's field equations with G and Λ both varying with time are considered in the presence of a perfect fluid for five-dimensional cosmological model in a way which conserves the energy momentum tensor of the matter content. Several sets of explicit solutions in the five-dimensional Kaluza--Klein type cosmological models with variable G and Λ are obtained. The diminishment of extra dimension with the evolution of the universe for the five-dimensional model is exhibited. The physical properties of the models are examined.
Abstract：Einstein's field equations with G and Λ both varying with time are considered in the presence of a perfect fluid for five-dimensional cosmological model in a way which conserves the energy momentum tensor of the matter content. Several sets of explicit solutions in the five-dimensional Kaluza--Klein type cosmological models with variable G and Λ are obtained. The diminishment of extra dimension with the evolution of the universe for the five-dimensional model is exhibited. The physical properties of the models are examined.
H. Baysal;.I. Yilmaz. Five-Dimensional Cosmological Model with Variable G and Λ[J]. 中国物理快报, 2007, 24(8): 2185-2188.
H. Baysal, .I. Yilmaz. Five-Dimensional Cosmological Model with Variable G and Λ. Chin. Phys. Lett., 2007, 24(8): 2185-2188.
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