# A New Spin on Neutrino Quantum Kinetics

Source: [A New Spin on Neutrino Quantum Kinetics](<https://www.sota2.com/research/paper/68fa2ed51e209131ce86684f>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T17:10:18.522Z

Authors: Vincenzo Cirigliano, George M. Fuller, Alexey Vlasenko

Published: 2014-06-20T23:47:19.000Z

## Abstract

Recent studies have demonstrated that in anisotropic environments a coherent spin-flip term arises in the Quantum Kinetic Equations (QKEs) which govern the evolution of neutrino flavor and spin in hot and dense media. This term can mediate neutrino-antineutrino transformation for Majorana neutrinos and active-sterile transformation for Dirac neutrinos. We discuss the physical origin of the coherent spin-flip term and provide explicit expressions for the QKEs in a two-flavor model with spherical geometry. In this context, we demonstrate that coherent neutrino spin transformation depends on the absolute neutrino mass and Majorana phases.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1406.5558>)

[PDF](<https://arxiv.org/pdf/1406.5558.pdf>)