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Primordial magnetic fields from metric perturbations
We study the amplification of electromagnetic vacuum fluctuations induced by the evolution of scalar metric perturbations at the end of inflation. Such perturbations break the conformal invariance of Maxwell equations in Friedmann-Robertson-Walker backgrounds and allow the growth of magnetic fields...
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| Lenguaje: | eng |
| Publicado: |
2000
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| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.64.083006 http://cds.cern.ch/record/455484 |