COSE: A Collective Oscillation Simulation Engine for Neutrinos
arXiv:2203.12866 · doi:10.1016/j.cpc.2022.108588
Abstract
We introduce the implementation details of the simulation code \cosenu, which numerically solves a set of non-linear partial differential equations that govern the dynamics of neutrino collective flavor conversions. We systematically provide the details of both the finite difference method supported by Kreiss-Oliger dissipation and the finite volume method with seventh order weighted essentially non-oscillatory scheme. To ensure the reliability of the code, we perform the comparison of the simulation results with theoretically obtainable solutions. In order to understand and characterize the error accumulation behavior of the implementations when neutrino self-interactions are switched on, we also analyze the evolution of the deviation of the conserved quantities for different values of simulation parameters. We report the performance of our code with both CPUs and GPUs. The public version of the \cosenu~package is available at \url{https://github.com/COSEnu/COSEnu}.
17 pages, 13 figures
References in corpus (8)
- Fast neutrino flavor conversions near the supernova core with realistic flavor-dependent angular distributions
- Fast flavor conversions of supernova neutrinos: Classifying instabilities via dispersion relations
- Fast collective neutrino oscillations inside the neutrino sphere in core-collapse supernovae
- Fast Neutrino Flavor Conversion Modes in Multidimensional Core-collapse Supernova Models: the Role of the Asymmetric Neutrino Distributions
- Fast flavor oscillations in dense neutrino media with collisions
- The dispersion relation of the fast neutrino oscillation wave
- Neutrino Flavor Conversions in High-Density Astrophysical and Cosmological Environments
- Code Comparison for Fast Flavor Instability Simulation
Cited by in corpus (13)
- Evolution of collisional neutrino flavor instabilities in spherically symmetric supernova models
- Evaluating approximate asymptotic distributions for fast neutrino flavor conversions in a periodic 1D box
- Fast neutrino flavor conversions in a supernova: Emergence, evolution, and effects
- Two-Moment Neutrino Flavor Transformation with applications to the Fast Flavor Instability in Neutron Star Mergers
- Asymptotic-state prediction for fast flavor transformation in neutron star mergers
- Robust integration of fast flavor conversions in classical neutrino transport
- Fast Flavor Transformations
- Asymptotic states of fast neutrino-flavor conversions in the three-flavor framework
- Evolution and the quasistationary state of collective fast neutrino flavor conversion in three dimensions without axisymmetry
- Quasi-steady evolution of fast neutrino-flavor conversions
- Flavor Equilibration of Supernova Neutrinos: Exploring the Dynamics of Slow Modes
- Inference finds consistency between a neutrino flavor evolution model and Earth-based solar neutrino measurements
- Systematic local simulations of fast neutrino flavor conversions with scattering effects