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Stationary solutions for fast flavor oscillations of a homogeneous dense neutrino gas

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arxiv 2104.05618 v2 pith:IGG5PJWK submitted 2021-04-12 astro-ph.HE

classification astro-ph.HE
keywords solutionsfastflavorneutrinooscillationsaveragedenseevolution
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We present a method to find the stationary solutions for fast flavor oscillations of a homogeneous dense neutrino gas. These solutions correspond to collective rotation of all neutrino polarization vectors around a fixed axis in the flavor space on average, and are conveniently studied in the co-rotating frame. We show that these solutions can account for the numerical results of explicit evolution calculations, and that even with the simplest assumption of adiabatic evolution, they can provide the average survival probabilities to good approximation. We also discuss improvement of these solutions and their use as estimates of the effects of fast oscillations in astrophysical environments.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Quasi-steady flavor configuration of multi-energy neutrino ensembles

    astro-ph.HE 2026-08 conditional novelty 6.0 of 10

    Semi-analytic formulas for the quasi-steady flavor state of multi-energy neutrinos reproduce numerical kinetic-equation solutions to about 10-15% accuracy in homogeneous periodic boxes.

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