Slow decay of magnetic fields in open Friedmann universes

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dc.creatorBarrow, John D.
dc.creatorTsagas, Christos G.
dc.date2008-03-05
dc.date2008-03-24
dc.date.accessioned2026-07-07T11:48:55Z
dc.date.available2026-07-07T11:48:55Z
dc.descriptionWe describe how magnetic fields in Friedmann universes can experience superadiabatic growth without departing from conventional electromagnetism. The reason is the relativistic coupling between vector fields and spacetime geometry, which slows down the decay of large-scale magnetic fields in open universes, compared to that seen in perfectly flat models. The result is a large relative gain in magnetic strength during the pre-galactic era that can lead to astrophysically interesting B-fields, even if our universe is only marginally open today.
dc.descriptionTypos corrected. To appear in PRD (Brief Reports)
dc.identifierhttps://arxiv.org/abs/0803.0660
dc.identifierhttp://arxiv.org/abs/0803.0660
dc.identifierPhys.Rev.D77:107302,2008; Erratum-ibid.D77:109904,2008
dc.identifierdoi:10.1103/PhysRevD.77.109904
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203054
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleSlow decay of magnetic fields in open Friedmann universes
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