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Inference of neutrino flavor evolution through data assimilation and neural differential equations

Journal Article · · Physical Review. D.
 [1];  [2];  [3];  [4]
  1. Univ. of California, Berkeley, CA (United States); Univ. of Minnesota, Minneapolis, MN (United States)
  2. Univ. of California, Berkeley, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Univ. of Washington, Seattle, WA (United States)
  3. New York Inst. of Technology, New York, NY (United States); American Museum of Natural History (AMNH), New York, NY (United States)
  4. Univ. of California, San Diego, CA (United States)

The evolution of neutrino flavor in dense environments such as core-collapse supernovae and binary compact object mergers constitutes an important and unsolved problem. Its solution has potential implications for the dynamics and heavy-element nucleosynthesis in these environments. In this paper, we build upon recent work to explore inference-based techniques for the estimation of model parameters and neutrino flavor evolution histories. Here, we combine data assimilation, ordinary differential equation solvers, and neural networks to craft an inference approach tailored for nonlinear dynamical systems. Using this architecture, and a simple two-neutrino-beam, two-flavor model, we compare the performances of nine different optimization algorithms and expand upon previous assessments of the efficacy of inference for tackling problems in flavor evolution. We find that employing this new architecture, together with evolutionary optimization algorithms, accurately captures flavor histories in the small-scale model and allows us to quickly explore both model parameters and initial flavor content. In future work we plan to extend these inference techniques to large numbers of neutrinos.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); Heising-Simons Foundation
Grant/Contract Number:
AC02-76SF00515; SC0018297
OSTI ID:
1767147
Report Number(s):
SLAC-PUB--17563
Journal Information:
Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 4 Vol. 103; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (83)

Application of Deterministic Low-Discrepancy Sequences in Global Optimization journal March 2005
Direct and adjoint sensitivity analysis of chemical kinetic systems with KPP: Part I—theory and software tools journal November 2003
Flavor instabilities in the neutrino line model journal July 2015
On fast neutrino flavor conversion modes in the nonlinear regime journal March 2019
Updating quasi-Newton matrices with limited storage journal September 1980
Fast neutrino flavor conversion as oscillations in a quartic potential journal January 2018
Evolutionary algorithms: A critical review and its future prospects conference December 2016
Search Biases in Constrained Evolutionary Optimization journal May 2005
A Class of Globally Convergent Optimization Methods Based on Conservative Convex Separable Approximations journal January 2002
On the Occurrence of Crossings between the Angular Distributions of Electron Neutrinos and Antineutrinos in the Supernova Core journal September 2019
Collective Neutrino Oscillations text January 2010
Julia: A Fresh Approach to Numerical Computing preprint January 2014
Neutrino flavor instabilities in a time-dependent supernova model text January 2015
Coherent Development of Neutrino Flavor in the Supernova Environment text January 2006
On the limited memory BFGS method for large scale optimization journal August 1989
Stochastic global optimization methods part I: Clustering methods journal September 1987
On the implementation of an interior-point filter line-search algorithm for large-scale nonlinear programming journal April 2005
Global optimization of statistical functions with simulated annealing journal January 1994
Multilayer feedforward networks are universal approximators journal January 1989
Stiff differential equations solved by Radau methods journal November 1999
Deep convolution neural network for image recognition journal November 2018
Physics-informed neural networks: A deep learning framework for solving forward and inverse problems involving nonlinear partial differential equations journal February 2019
A unified deep artificial neural network approach to partial differential equations in complex geometries journal November 2018
Collective neutrino flavor conversion: Recent developments journal July 2016
Neutrino flavor instabilities in a time-dependent supernova model journal December 2015
Numerical and physical stability of supernova neutrino flavor evolution journal June 2015
Neutrino flavour transformation in supernovae journal September 2009
Self-induced flavor conversion of supernova neutrinos on small scales journal January 2016
Fast neutrino flavor conversions near the supernova core with realistic flavor-dependent angular distributions journal February 2017
Three flavor neutrino conversions in supernovae: slow & fast instabilities journal January 2020
Searching for fast neutrino flavor conversion modes in core-collapse supernova simulations journal May 2020
Neutrino halo effect on collective neutrino oscillation in iron core-collapse supernova model of a 9.6 M star journal June 2020
Updating quasi-Newton matrices with limited storage journal September 1980
A Simplex Method for Function Minimization journal January 1965
On the occurrence of fast neutrino flavor conversions in multidimensional supernova models journal August 2019
Neutrino oscillations in supernovae: Angular moments and fast instabilities journal February 2020
Time of flight and supernova progenitor effects on the neutrino halo journal July 2020
Inference offers a metric to constrain dynamical models of neutrino flavor transformation journal August 2020
Late-time behavior of fast neutrino oscillations journal September 2020
Self-induced conversion in dense neutrino gases: Pendulum in flavor space journal November 2006
Simulation of coherent nonlinear neutrino flavor transformation in the supernova environment: Correlated neutrino trajectories journal November 2006
Collective neutrino flavor transformation in supernovae journal December 2006
Erratum: Self-induced conversion in dense neutrino gases: Pendulum in flavor space [Phys. Rev. D 74 , 105010 (2006)] journal July 2007
Self-induced spectral splits in supernova neutrino fluxes journal October 2007
Adiabaticity and spectral splits in collective neutrino transformations journal December 2007
Erratum: Self-induced spectral splits in supernova neutrino fluxes [Phys. Rev. D 76 , 081301 (2007)] journal January 2008
Collective three-flavor oscillations of supernova neutrinos journal June 2008
Multiangle instability in dense neutrino systems journal May 2009
Linearized flavor-stability analysis of dense neutrino streams journal September 2011
Halo modification of a supernova neutronization neutrino burst journal April 2013
Multi-azimuthal-angle instability for different supernova neutrino fluxes journal August 2014
Temporal instability enables neutrino flavor conversions deep inside supernovae journal December 2015
Fast flavor conversions of supernova neutrinos: Classifying instabilities via dispersion relations journal August 2017
An optimization-based approach to calculating neutrino flavor evolution journal October 2017
Fast neutrino flavor conversion as oscillations in a quartic potential journal January 2018
Strange mechanics of the neutrino flavor pendulum journal January 2018
Linear stability analysis of collective neutrino oscillations without spurious modes journal January 2018
Linear analysis of fast-pairwise collective neutrino oscillations in core-collapse supernovae based on the results of Boltzmann simulations journal May 2019
Axial Symmetry Breaking in Self-Induced Flavor Conversionof Supernova Neutrino Fluxes journal August 2013
Erratum: Axial Symmetry Breaking in Self-Induced Flavor Conversion of Supernova Neutrino Fluxes [Phys. Rev. Lett. 111 , 091101 (2013)] journal December 2014
Neutrino Cloud Instabilities Just above the Neutrino Sphere of a Supernova journal February 2016
Fast Pairwise Conversion of Supernova Neutrinos: A Dispersion Relation Approach journal January 2017
Collisional Triggering of Fast Flavor Conversions of Supernova Neutrinos journal March 2019
Neural Network Differential Equation and Plasma Equilibrium Solver journal November 1995
Coherent Development of Neutrino Flavor in the Supernova Environment journal December 2006
Fast neutrino-flavor conversion in the preshock region of core-collapse supernovae journal February 2020
Stochastic ranking for constrained evolutionary optimization journal January 2000
Artificial neural networks for solving ordinary and partial differential equations journal January 1998
Genetic Learning Particle Swarm Optimization journal October 2016
Search Biases in Constrained Evolutionary Optimization journal May 2005
Inverse Problem Theory and Methods for Model Parameter Estimation book January 2005
Julia: A Fresh Approach to Numerical Computing journal January 2017
A Class of Globally Convergent Optimization Methods Based on Conservative Convex Separable Approximations journal January 2002
Adjoint Sensitivity Analysis for Differential-Algebraic Equations: The Adjoint DAE System and Its Numerical Solution journal January 2003
Neutrino Emission as Diagnostics of Core-Collapse Supernovae journal October 2019
Neutrinos From Supernova Explosions journal December 1990
Collective Neutrino Oscillations journal November 2010
Supernova neutrinos: Production, oscillations and detection journal February 2016
Optim: A mathematical optimization package for Julia journal April 2018
Recent Advances of Deep Learning in Bioinformatics and Computational Biology journal March 2019
Deep Learning in the Biomedical Applications: Recent and Future Status journal April 2019
Fast-pairwise Collective Neutrino Oscillations Associated with Asymmetric Neutrino Emissions in Core-collapse Supernovae journal November 2019
DifferentialEquations.jl – A Performant and Feature-Rich Ecosystem for Solving Differential Equations in Julia journal May 2017