Generation of Large-Scale Magnetic Fields from Dilaton Inflation in Noncommutative Spacetime

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dc.creatorBamba, Kazuharu
dc.creatorYokoyama, J.
dc.date2005-02-28
dc.date.accessioned2026-07-07T03:54:27Z
dc.date.available2026-07-07T03:54:27Z
dc.descriptionGeneration of large-scale magnetic fields is studied in dilaton electromagnetism in noncommutative inflationary cosmology, taking into account the effects of the spacetime uncertainty principle motivated by string theory. We show that it is possible to generate large-scale magnetic fields with sufficient strength to account for the observed fields in galaxies and clusters of galaxies through only adiabatic compression without dynamo amplification mechanism in models of power-law inflation based on spacetime noncommutativity without introducing a huge hierarchy between the dilaton's potential and its coupling to the electromagnetic fields.
dc.descriptionTo be published in the proceedings of 22nd Texas Symposium on Relativistic Astrophysics, Stanford University, December 2004, (1104) 6 pages, no figure
dc.identifierhttps://arxiv.org/abs/hep-ph/0502244
dc.identifierhttp://arxiv.org/abs/hep-ph/0502244
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/44245
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleGeneration of Large-Scale Magnetic Fields from Dilaton Inflation in Noncommutative Spacetime
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