AN INFLATIONARY MODEL OF KALUZA-KLEIN TYPE |
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| Authors: | CHEN Shi YU Yun-qiang |
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| Institution: | 1. Institute of Theoretical Physics, Academia Sinica, P. O. Box 2735, Beijing, China;
2. Department of Physics, Peking University, Beijing, China |
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| Abstract: | Assuming an equation of state as p1=ρ/3 and p2=ρ/D, an inflationary model of Kaluza-Klein type is studied. By solving the horizon and entropy problems, it is found that the dimension of the extra subspace should be as large as 35 to 70, if the ratio of R2(max) to Planck length is taken as 102 to 104. However, the substantial period of the inflation happens at time much larger than the Planck time if we take the ratio as 103 or even a larger number. |
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