{"paper":{"title":"Intermittent Turbulence, Fast Flavor Conversion, and Observable Supernova Probes","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"Intermittent turbulence in supernovae sets the fast flavor conversion fraction while neutrino spectral hierarchy fixes the sign of heating corrections.","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Andrea Addazi, Yiwei Bao","submitted_at":"2026-01-16T13:18:43Z","abstract_excerpt":"Fast flavor conversion (FFC) in core-collapse supernovae is usually analyzed in homogeneous backgrounds or with smooth stochastic turbulence closures. We construct an exact linear benchmark in which the matter-noise memory kernel is instead generated by a finite She--Leveque log-Poisson cascade. Projecting the marginal FFC channel onto this kernel gives a causal Volterra equation whose non-Markovian memory closes into a finite local system. The resulting Laplace-space resolvent is rational, with one pole pair for each cascade level, so the dispersion relation, characteristic polynomial, and ti"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Thus intermittency mainly controls the conversion fraction, while the neutrino spectral hierarchy controls the sign of the heating correction.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The assumption that the matter-noise memory kernel is generated by a finite She-Leveque log-Poisson cascade and that the marginal FFC channel projects onto this kernel to give a causal Volterra equation whose non-Markovian memory closes into a finite local system.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Using a She-Leveque cascade for intermittent turbulence in supernovae, the model predicts a fast flavor conversion fraction of approximately 0.455 and heating corrections of 4-6% whose sign depends on the neutrino spectral hierarchy.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Intermittent turbulence in supernovae sets the fast flavor conversion fraction while neutrino spectral hierarchy fixes the sign of heating corrections.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"44463611a3bd63f3e389e706515fb2f84cafa6901f632c3c9fc56816cc2fef85"},"source":{"id":"2601.11272","kind":"arxiv","version":3},"verdict":{"id":"c520aeac-720e-4beb-87a3-0ce43cb1a628","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-16T13:27:52.918684Z","strongest_claim":"Thus intermittency mainly controls the conversion fraction, while the neutrino spectral hierarchy controls the sign of the heating correction.","one_line_summary":"Using a She-Leveque cascade for intermittent turbulence in supernovae, the model predicts a fast flavor conversion fraction of approximately 0.455 and heating corrections of 4-6% whose sign depends on the neutrino spectral hierarchy.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The assumption that the matter-noise memory kernel is generated by a finite She-Leveque log-Poisson cascade and that the marginal FFC channel projects onto this kernel to give a causal Volterra equation whose non-Markovian memory closes into a finite local system.","pith_extraction_headline":"Intermittent turbulence in supernovae sets the fast flavor conversion fraction while neutrino spectral hierarchy fixes the sign of heating corrections."},"references":{"count":16,"sample":[{"doi":"","year":2013,"title":"Burrows, Colloquium: Perspectives on core-collapse supernova theory, Reviews of Modern Physics 85, 245 (2013), arXiv:1210.4921 [astro-ph.SR]","work_id":"1358d7d1-b3d5-4aed-91e6-a01c7bc44717","ref_index":1,"cited_arxiv_id":"1210.4921","is_internal_anchor":true},{"doi":"","year":2025,"title":"Janka,Long-Term Multidimensional Models of Core-Collapse Supernovae: Progress and Challenges, Annu","work_id":"bf05dc3c-8d8f-496d-ad42-1c9ce974e0b3","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2017,"title":"Muon Creation in Supernova Matter Facilitates Neutrino-driven Explosions","work_id":"db5dd940-381c-4107-8825-621cc712eb75","ref_index":3,"cited_arxiv_id":"1706.04630","is_internal_anchor":true},{"doi":"","year":2023,"title":"J. Ehring, S. Abbar, H.-T. Janka, G. Raffelt, and I. Tamborra, Phys. Rev. Lett.131, 061401 (2023), arXiv:2305.11207 [astro-ph.HE]","work_id":"3ec0ab32-6c47-4f7d-9731-275cf1384d64","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2023,"title":"Nagakura, Roles of Fast Neutrino-Flavor Conver- sion on the Neutrino-Heating Mechanism of Core- Collapse Supernova, Phys","work_id":"90bcd9f7-1bbb-45c2-bd92-c7ae1da66628","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":16,"snapshot_sha256":"a7effdfa2268cc5d6a9aaa680829b8abb3ac2b531e141e0e1f9f776b649dce2b","internal_anchors":6},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}