V-mode Polarization in Axion Inflation and Preheating
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 spectrum with index nV=4. This is independent of the dominant decay channel of the inflaton (direct fermion vs. direct photon production)
0
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.