Neutrino fast flavor oscillations with moments: linear stability analysis and application to neutron star mergers
arXiv:2311.11968 · doi:10.1103/PhysRevD.109.043046
Abstract
Providing an accurate modeling of neutrino physics in dense astrophysical environments such as binary neutron star mergers presents a challenge for hydrodynamic simulations. Nevertheless, understanding how flavor transformation can occur and affect the dynamics, the mass ejection, and the nucleosynthesis will need to be achieved in the future. Computationally expensive, large-scale simulations frequently evolve the first classical angular moments of the neutrino distributions. By promoting these quantities to matrices in flavor space, we develop a linear stability analysis of fast flavor oscillations using only the first two "quantum" moments, which notably requires generalizing the classical closure relations that appropriately truncate the hierarchy of moment equations in order to treat quantum flavor coherence. After showing the efficiency of this method on a well-understood test situation, we perform a systematic search of the occurrence of fast flavor instabilities in a neutron star merger simulation. We discuss the successes and shortcomings of moment linear stability analysis, as this framework provides a time-efficient way to design and study better closure prescriptions in the future.
20 pages, 13 figures. v3: typo corrected in Eq. (34)
References in corpus (49)
- Truncated Moment Formalism for Radiation Hydrodynamics in Numerical Relativity
- High resolution numerical-relativity simulations for the merger of binary magnetized neutron stars
- Fast Pairwise Conversion of Supernova Neutrinos: A Dispersion-Relation Approach
- Impact of an improved neutrino energy estimate on outflows in neutron star merger simulations
- The multi-angle instability in dense neutrino systems
- Neutrino oscillations in supernovae: angular moments and fast instabilities
- 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
- A new possibility of the fast neutrino-flavor conversion in the pre-shock region of core-collapse supernova
- Fast Neutrino Flavor Conversion Modes in Multidimensional Core-collapse Supernova Models: the Role of the Asymmetric Neutrino Distributions
- Fast-pairwise collective neutrino oscillations associated with asymmetric neutrino emissions in core-collapse supernova
- Linear Analysis of Fast-Pairwise Collective Neutrino Oscillations in Core-Collapse Supernovae based on the Results of Boltzmann Simulations
- Fast Neutrino Flavor Conversions can Help and Hinder Neutrino-Driven Explosions
- Fast Neutrino Flavor Conversion in Core-Collapse Supernovae: A Parametric Study in 1D Models
- On the characteristics of fast neutrino flavor instabilities in three-dimensional core-collapse supernova models
- Fast flavor oscillations in dense neutrino media with collisions
- Roles of fast neutrino-flavor conversion on the neutrino-heating mechanism of core-collapse supernova
- Time-dependent and quasi-steady features of fast neutrino-flavor conversion
- Matter Neutrino Resonance Transitions above a Neutron Star Merger Remnant
- A change of direction in pairwise neutrino conversion physics: The effect of collisions
- Neutrino Flavor Pendulum Reloaded: The Case of Fast Pairwise Conversion
- Neutrino Flavor Conversions in High-Density Astrophysical and Cosmological Environments
- Oscillation Effects and Time Variation of the Supernova Neutrino Signal
- Evolution of collisional neutrino flavor instabilities in spherically symmetric supernova models
- Simulations of Fast Neutrino Flavor Conversions with Interactions in Inhomogeneous Media
- Code Comparison for Fast Flavor Instability Simulation
- Turbulence effects on supernova neutrinos
- Neutrino Fast Flavor Pendulum. Part 2: Collisional Damping
- Prospects of fast flavor neutrino conversion in rotating core-collapse supernovae
- Collisional instabilities of neutrinos and their interplay with fast flavor conversion in compact objects
- Evaluating approximate asymptotic distributions for fast neutrino flavor conversions in a periodic 1D box
- Collisional flavor instability in dense neutrino gases
- Collision-induced flavor instability in dense neutrino gases with energy-dependent scattering
- Slow and fast collective neutrino oscillations: Invariants and reciprocity
- Characterizing quasi-steady states of fast neutrino-flavor conversion by stability and conservation laws
- Probing neutrino oscillations from supernovae shock waves via the IceCube detector
- Dynamics of fast neutrino flavor conversions with scattering effects: a detailed analysis
- Evaluating Approximate Flavor Instability Metrics in Neutron Star Mergers
- Enhancement or damping of fast neutrino flavor conversions due to collisions
- A Systematic Study on the Resonance in Collisional Neutrino Flavor Instability
- Flavor solitons in dense neutrino gases
- Collisional and Fast Neutrino Flavor Instabilities in Two-dimensional Core-collapse Supernova Simulation with Boltzmann Neutrino Transport
- Universality of the Neutrino Collisional Flavor Instability in Core Collapse Supernovae
- Connecting small-scale to large-scale structures of fast neutrino-flavor conversion
- New method for detecting fast neutrino flavor conversions in core-collapse supernova models with two-moment neutrino transport
- Stimulated neutrino transformation through turbulence on a changing density profile and application to supernovae
- Applications of Machine Learning to Detecting Fast Neutrino Flavor Instabilities in Core-Collapse Supernova and Neutron Star Merger Models
- Neutrino flavor mixing with moments
Cited by in corpus (25)
- Neutrino Oscillations in Core-Collapse Supernovae and Neutron Star Mergers
- Fast neutrino flavor conversions in a supernova: Emergence, evolution, and effects
- Asymptotic-state prediction for fast flavor transformation in neutron star mergers
- Robust integration of fast flavor conversions in classical neutrino transport
- Evolution and the quasistationary state of collective fast neutrino flavor conversion in three dimensions without axisymmetry
- Fast neutrino-flavor swap in high-energy astrophysical environments
- Neutrino Flavor Transformation in Neutron Star Mergers
- Spectral diversity in collisional neutrino-flavor conversion: flavor equipartition or swap
- Angle-dependent in-situ fast flavor transformations in post-neutron star merger disks
- Flavor Equilibration of Supernova Neutrinos: Exploring the Dynamics of Slow Modes
- Muon-induced collisional flavor instability in core-collapse supernova
- Supernova Neutrinos: flavour conversion mechanisms and new physics scenarios
- Quantum maximum entropy closure for small flavor coherence
- Predicting the outcome of collisional neutrino flavor conversion
- Quantum Closures for Neutrino Moment Transport
- Open-source library for performance-portable neutrino reaction rates: Application to neutron star mergers
- Many-Body Simulations of the Fast Flavor Instability
- Advection Algorithms for Quantum Neutrino Moment Transport
- Impact of Neutrino Flavor Conversions on Neutron Star Merger Dynamics, Ejecta, Nucleosynthesis, and Multi-Messenger Signals
- Three-flavor, Full Momentum Space Neutrino Spin Oscillations in Neutron Star Mergers
- Testing common approximations of neutrino fast flavor conversion
- Neutrino flavor transformation with moments: application to fast flavor instabilities in neutron star mergers
- Sufficient and Necessary Conditions for Collective Neutrino Instability: Fast, Slow, and Mixed
- Neutrino flavor instabilities in neutron star mergers with moment transport: Slow, fast, and collisional modes
- Approximate Energy-Integration Method for Identifying Collisional Neutrino Flavor Instabilities