EXACT INFLATIONARY UNIVERSES WITH POTENTIAL MINIMA

被引：62

作者：

BARROW, JD

机构：

[1] Astronomy Centre, University of Sussex

来源：

PHYSICAL REVIEW D | 1994年 / 49卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.49.3055

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present new exact solutions to Einstein's equations that describe the evolution of inflationary universe models. The inflation is driven by the evolution of scalar fields in potentials which possess minima. One solution describes double inflation and the other displays a Mexican-hat potential. The spectral indices of the scalar density and gravitational wave fluctuations are computed. One of the solutions displays the limitations of attempts to reconstruct the inflationary potential from present-day observations via an expansion in the slow-roll parameters.

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页码：3055 / 3058

页数：4

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