Scale-invariant scalar metric fluctuations during inflation: non-perturbative formalism from a 5D vacuum

被引：2
作者：
Anabitarte, M. [1 ]
Bellini, M. [1 ,2 ]
Madriz Aguilar, Jose Edgar [1 ,3 ]
机构：
[1] Univ Nacl Mar del Plata, Dept Fis, Fac Ciencias Exactas & Nat, RA-7600 Mar Del Plata, Argentina
[2] Consejo Nacl Invest Cient & Tecn CONICET, RA-7600 Mar Del Plata, Argentina
[3] Univ Guanajuato, Dept Fis, DCI, Leon Guanajuato 37150, Mexico
来源：
EUROPEAN PHYSICAL JOURNAL C | 2010年 / 65卷 / 1-2期
关键词：
STOCHASTIC INFLATION; WARM INFLATION; EQUATIONS; SYMMETRY; UNIVERSE; HORIZON; MODELS; MATTER;
D O I：
10.1140/epjc/s10052-009-1180-2
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We extend to 5D an approach of a 4D non-perturbative formalism to study scalar metric fluctuations of a 5D Riemann-flat de Sitter background metric. In contrast with the results obtained in 4D, the spectrum of cosmological scalar metric fluctuations during inflation can be scale invariant and the background inflaton field can take sub-Planckian values.
引用
收藏
页码：295 / 301
页数：7
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