Large-scale primordial magnetic fields from inflation and preheating

被引：0

作者：

Törnkvist, O ^{[1
]}

Davis, AC ^{[1
]}

Dimopoulos, K ^{[1
]}

Prokopec, T ^{[1
]}

机构：

[1] Univ Cambridge, Dept Appl Math & Theoret Phys, Cambridge CB3 0WA, England

来源：

COSMOLOGY AND PARTICLE PHYSICS | 2001年 / 555卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider models in which the (transverse) photon mass is non-zero during inflation and drops to zero non-adiabatically at the end of inflation. Through this process, vacuum fluctuations of the photon field are converted into physical, long-wavelength modes with high amplitude. The resulting spectrum of the field strength is approximately B-l similar to l(-1), where l is tile relevant coherence scale. With a reasonable model of field evolution we obtain, on comoving galactic scales, a magnetic field strong enough to seed a dynamo mechanism and generate the observed galactic magnetic fields.

引用

页码：443 / 446

页数：4

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