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DBI with primordial magnetic field in the sky

Ganjali, M. A ; Sharif University of Technology | 2005

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  1. Type of Document: Article
  2. DOI: 10.1088/1126-6708/2005/09/004
  3. Publisher: 2005
  4. Abstract:
  5. In this paper, we study the generation of a large scale magnetic field with amplitude of order μG in an inflationary model which has been introduced in [1]. This inflationary model based on existence of a speed limit for inflaton field. Generating a mass for inflaton at scale above the φIR, breaks the conformal triviality of the Maxwell equation and causes to originate a magnetic field during the inflation. The amplitude strongly depends on the details of reheating stage and also depends on the e-foldings parameter N. We find the amplitude of the primordial magnetic field at decoupling time in this inflationary background using late time behavior of the theory. © SISSA 2005
  6. Keywords:
  8. Source: Journal of High Energy Physics ; Issue 9 , 2005 , Pages 57-68 ; 10298479 (ISSN)
  9. URL: https://iopscience.iop.org/article/10.1088/1126-6708/2005/09/004