Scalar fluctuations of the scalar metric during inflation from a non-perturbative 5D large-scale repulsive gravity model

被引：1
|
作者：
Madriz Aguilar, Jose Edgar [1 ]
Reyes, Luz M. [1 ]
Moreno, Claudia [1 ]
Bellini, Mauricio [2 ,3 ]
机构：
[1] UdG, CUCEI, Dept Matemat, Guadalajara 44430, Jalisco, Mexico
[2] UNMdP, Fac Ciencias Exactas & Nat, Dept Fis, RA-7600 Mar Del Plata, Buenos Aires, Argentina
[3] Consejo Nacl Invest Cient & Tecn, Inst Invest Fis Mar del Plata IFIMAR, Mar Del Plata, Buenos Aires, Argentina
来源：
EUROPEAN PHYSICAL JOURNAL C | 2013年 / 73卷 / 10期
关键词：
UNIVERSE;
D O I：
10.1140/epjc/s10052-013-2598-0
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 develop a non-perturbative formalism for scalar metric fluctuations from a 5D extended version of general relativity in vacuum. In this work we concentrate our efforts on calculations valid on large cosmological scales, which are dominant during the inflationary phase of the universe. The resulting metric in this limit is obtained after implementing a planar coordinate transformation on a 5D Ricci-flat metric solution. We calculate the spectrum of these fluctuations with an effective 4D Schwarzschild-de Sitter spacetime on cosmological scales, which is obtained after we make a static foliation on the non-compact extra coordinate. Our results show how the squared metric fluctuations of the primordial universe become scale invariant with the inflationary expansion.
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页码：1 / 8
页数：8
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