Power spectrum of large-scale magnetic fields from Gravitoelectromagnetic inflation with a decaying cosmological parameter - High Energy Physics - TheoryReport as inadecuate




Power spectrum of large-scale magnetic fields from Gravitoelectromagnetic inflation with a decaying cosmological parameter - High Energy Physics - Theory - Download this document for free, or read online. Document in PDF available to download.

Abstract: Introducing a variable cosmological parameter $\Lambda t$ in a geometricalmanner from a 5D Riemann-flat metric, we investigate the origin and evolutionof primordial magnetic fields in the early universe, when the expansion isgoverned by a cosmological parameter $\Lambda t$ that decreases with time.Using the gravitoelectromagnetic inflationary formalism, but without theFeynman gauge, we obtain the power of spectrums for large-scale magnetic fieldsand the inflaton field fluctuations during inflation. A very important fact isthat our formalism is {\em naturally non-conformally invariant}.



Author: Federico Agustin Membiela Mar del Plata University and CONICET, Mauricio Bellini Mar del Plata University and CONICET

Source: https://arxiv.org/



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