General solution to two-scalar field cosmologies with exponential potentials

被引:52
作者
Chimento, LP [1 ]
机构
[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, RA-1428 Buenos Aires, DF, Argentina
关键词
D O I
10.1088/0264-9381/15/4/017
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We find the exact general solution for cosmological models arising from the interaction of the gravitational field with two scalar fields in both Bat Robertson-Walker and the locally rotationally symmetric Bianchi I spacetime filled with an exponential potential. One scalar field self-interacts with this potential and the other is a free massless scalar field. The solutions have a singularity and a set of these exhibit the transition to power-law inflation for both metrics.
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页码:965 / 974
页数:10
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