Description: We study the cosmology resulting from two coupled scalar fields, one which is either a new inflation or chaotic type inflation and the other which has an exponentially decaying potential. Such potential may appear in the conformally transformed frame of generalized Einstien theories like the Jordan-Brans-Dicke theory. The constraints necessary for successful inflation are examined. We find conventional GUT models such as SU(5) are compatible with new inflation, while restrictions on the self-coupling constant are significantly loosened for chaotic inflation. 20 refs., 1 fig.
Date: April 1, 1990
Creator: Berkin, A.L. (Waseda Univ., Tokyo (Japan). Dept. of Physics); Maeda, Kei-ichi (Waseda Univ., Tokyo (Japan). Dept. of Physics Fermi National Accelerator Lab., Batavia, IL (USA)) & Yokoyama, Jun'ichi (Tokyo Univ. (Japan). Dept. of Physics Fermi National Accelerator Lab., Batavia, IL (USA))
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