Dilatons in string cosmology

被引：56
|
作者：
Kaloper, Nemanja [1 ]
Olive, Keith A. [1 ]
机构：
[1] Univ Minnesota, Tate Lab Phys, Sch Phys & Astron, Minneapolis, MN 55455 USA
来源：
ASTROPARTICLE PHYSICS | 1993年 / 1卷 / 02期
关键词：
D O I：
10.1016/0927-6505(93)90021-5
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider the evolution of the dilaton in a Friedmann-Robertson-Walker background by numerically integrating the equations of motion as determined by the low-energy expansion of the string theory action. We find that the dilaton may be fixed by either self-interaction terms providing a dilaton mass or decoupling in a radiation dominated Universe. We also comment on conditions applicable to an exponentially expanding phase.
引用
收藏
页码：185 / 193
页数：9
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