Pith. sign in

REVIEW 3 cited by

Code Comparison for Fast Flavor Instability Simulation

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2205.06282 v2 pith:RD7OJGJO submitted 2022-05-12 astro-ph.HE astro-ph.IM

Sherwood Richers , Huaiyu Duan , Meng-Ru Wu , Soumya Bhattacharyya , Masamichi Zaizen , Manu George , Chun-Yu Lin , Zewei Xiong This is my paper · ORCID
classification astro-ph.HEastro-ph.IM
keywords flavorcomparisonerrorfastinstabilitymethodneutrinoresults
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

The fast flavor instability (FFI) is expected to be ubiquitous in core-collapse supernovae and neutron star mergers. It rapidly shuffles neutrino flavor in a way that could impact the explosion mechanism, neutrino signals, mass outflows, and nucleosynthesis. The variety of initial conditions and simulation methods employed in simulations of the FFI prevent an apples-to-apples comparison of the results. We simulate a standardized test problem using five independent codes and verify that they are all faithfully simulating the underlying quantum kinetic equations under the assumptions of axial symmetry and homogeneity in two directions. We quantify the amount of numerical error in each method and demonstrate that each method is superior in at least one metric of this error. We make the results publicly available to serve as a benchmark.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 3 Pith papers

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

  1. Neutrino flavor-wave transport: Numerical tests and theoretical challenges

    hep-ph 2026-08 conditional novelty 7.0 of 10

    Numerical tests of flavor-wave transport under slow driving show that the quasilinear and quasistatic approximations are unreliable due to wave-wave coupling and exceptional points.

  2. Local-equilibrium theory of neutrino oscillations

    hep-ph 2025-06 conditional novelty 7.0 of 10

    The authors generalize neutrino flavor-wave linear analysis to arbitrary mixing-equilibrium backgrounds and propose a kinetic-theory closure for turbulent flavor-wave viscosity.

  3. Single-wave solutions of the neutrino fast flavor system. Part II. Weak instabilities and their resonant behavior

    hep-ph 2026-01 conditional novelty 6.0 of 10

    For shallow angular crossings, the nonlinear evolution of a single-wave fast flavor instability is a flavor pendulum whose amplitude and period are set by the linear growth rate.

Pith tools