A LIMIT ON THE INFLATIONARY ENERGY DENSITY FROM AXION ISOCURVATURE FLUCTUATIONS

被引：86

作者：

LYTH, DH

机构：

[1] Department of Physics, University of Lancaster, Lancaster

来源：

PHYSICS LETTERS B | 1990年 / 236卷 / 04期

关键词：

D O I：

10.1016/0370-2693(90)90374-F

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is shown that the existence of axions arising from a Peccei-Quinn symmetry which is already broken at the onset of inflation implies an upper limit on the energy density V during inflation V 1 4 < 5 × 10-5mPl, where mPl is the Planck energy. The limit comes from requiring that isocurvature perturbations in the axion density should not produce a microwave background anisotropy in excess of the observational limit. © 1990.

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页码：408 / 410

页数：3

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