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Title: Property of the spectrum of large-scale magnetic fields from inflation

Abstract

The property of the spectrum of large-scale magnetic fields generated due to the breaking of the conformal invariance of the Maxwell theory through some mechanism in inflationary cosmology is studied. It is shown that the spectrum of the generated magnetic fields should not be perfectly scale-invariant but be slightly red so that the amplitude of large-scale magnetic fields can be stronger than {approx}10{sup -12} G at the present time. This analysis is performed by assuming the absence of amplification due to the late-time action of some dynamo (or similar) mechanism.

Authors:
 [1]
  1. Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan)
Publication Date:
OSTI Identifier:
21020358
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 8; Other Information: DOI: 10.1103/PhysRevD.75.083516; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AMPLITUDES; CONFORMAL INVARIANCE; COSMOLOGY; ENERGY SPECTRA; INFLATIONARY UNIVERSE; MAGNETIC FIELDS; SYMMETRY BREAKING

Citation Formats

Bamba, Kazuharu. Property of the spectrum of large-scale magnetic fields from inflation. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.083516.
Bamba, Kazuharu. Property of the spectrum of large-scale magnetic fields from inflation. United States. doi:10.1103/PHYSREVD.75.083516.
Bamba, Kazuharu. Sun . "Property of the spectrum of large-scale magnetic fields from inflation". United States. doi:10.1103/PHYSREVD.75.083516.
@article{osti_21020358,
title = {Property of the spectrum of large-scale magnetic fields from inflation},
author = {Bamba, Kazuharu},
abstractNote = {The property of the spectrum of large-scale magnetic fields generated due to the breaking of the conformal invariance of the Maxwell theory through some mechanism in inflationary cosmology is studied. It is shown that the spectrum of the generated magnetic fields should not be perfectly scale-invariant but be slightly red so that the amplitude of large-scale magnetic fields can be stronger than {approx}10{sup -12} G at the present time. This analysis is performed by assuming the absence of amplification due to the late-time action of some dynamo (or similar) mechanism.},
doi = {10.1103/PHYSREVD.75.083516},
journal = {Physical Review. D, Particles Fields},
number = 8,
volume = 75,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}
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