Symmetry and bipolar motion in collective neutrino flavor oscillations

Zewei Xiong, Meng Ru Wu, Yong Zhong Qian

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We identify a geometric symmetry on the two-flavor Bloch sphere for collective flavor oscillations of a homogeneous dense neutrino gas. Based on this symmetry, analytical solutions to the periodic bipolar flavor evolution are derived. Using numerical calculations, we show that for configurations without this symmetry, the flavor evolution displays deviations from the bipolar flavor motion or even exhibits aperiodic patterns. We also discuss the implication of our finding for more general three-flavor and inhomogeneous cases.

Original languageEnglish (US)
Article number043007
JournalPhysical Review D
Volume108
Issue number4
DOIs
StatePublished - Aug 15 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2023 authors. Published by the American Physical Society.

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