V-mode polarization in axion inflation and preheating
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DOI: 10.1103/physrevd.96.063506
Abstract: We study the production of primordial circular ("V-mode") polarization in axion inflation coupled to fermions and gauge fields, with special attention paid to (p)reheating. We construct the power spectrum of $V$, and find a blue-tilted… read more here.
Keywords: polarization axion; mode polarization; axion inflation;