INFLATION, DEFLATION, AND FRAME-INDEPENDENCE IN STRING COSMOLOGY

被引：191
|
作者：
GASPERINI, M
VENEZIANO, G
机构：
来源：
MODERN PHYSICS LETTERS A | 1993年 / 8卷 / 39期
关键词：
D O I：
10.1142/S0217732393003433
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The inflationary scenarios suggested by the duality properties of string cosmology in the Brans-Dicke (or string) frame are shown to correspond to accelerated contraction (deflation) when Weyl transformed to the Einstein frame. We point out that the basic virtues of inflation (solving the flatness and horizon problems, amplifying vacuum fluctuations, etc.) have physically equivalent counterparts in the deflationary (Einstein-frame) picture. This could be the answer to some objections recently raised to superstring cosmology.
引用
收藏
页码：3701 / 3713
页数：13
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