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Graviton creation from the CMB in large scale magnetic fields

Authors
  • Ejlli, Damian
Type
Published Article
Publication Date
Jun 27, 2013
Submission Date
May 26, 2013
Identifiers
DOI: 10.1103/PhysRevD.87.124029
Source
arXiv
License
Yellow
External links

Abstract

Conversion of the CMB photons into gravitational waves at the post recombination epoch is considered. We calculate the probability of transformation of the CMB photons into gravitons in the presence of a large scale magnetic field. Based on the present day limits on the strength of the large scale magnetic field we show that the probability of the produced gravitons as a result of photon to graviton conversion is reasonable and such mechanism would produce an isotropic background of gravitational waves in the same frequency range of the CMB photons. The mechanism proposed would be a rather good opportunity to study the high frequency part of the spectrum of gravitational waves.

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