Grand Unification Scale Primordial Black Holes: Consequences and Constraints

被引：73

作者：

Anantua, Richard ^{[1
]}

Easther, Richard ^{[1
]}

Giblin, John T., Jr. ^{[1
,2
]}

机构：

[1] Yale Univ, Dept Phys, New Haven, CT 06520 USA

[2] Bates Coll, Dept Phys & Astron, Lewiston, ME 04240 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 11期

关键词：

PARTICLE EMISSION RATES; MASSLESS PARTICLES; EARLY UNIVERSE; INFLATION; DENSITY; RELICS;

D O I：

10.1103/PhysRevLett.103.111303

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A population of very light primordial black holes which evaporate before nucleosynthesis begins is unconstrained unless the decaying black holes leave stable relics. We show that gravitons Hawking radiated from these black holes would source a substantial stochastic background of high frequency gravititational waves (10(12) Hz or more) in the present Universe. These black holes may lead to a transient period of matter-dominated expansion. In this case the primordial Universe could be temporarily dominated by large clusters of "Hawking stars" and the resulting gravitational wave spectrum is independent of the initial number density of primordial black holes.

引用

页数：4