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Inflationary magnetogenesis in the perturbative regime
While during inflation a phase of increasing gauge coupling allows for a scale-invariant hyperelectric spectrum, when the coupling decreases a flat hypermagnetic spectrum can be generated for typical wavelengths larger than the effective horizon. After the gauge coupling flattens out the late-time h...
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| Lenguaje: | eng |
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2020
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| Acceso en línea: | https://dx.doi.org/10.1088/1361-6382/abf899 http://cds.cern.ch/record/2748563 |