280 citations · 1.4k across the 35 of their papers we have counts for
6 papers · 1 filter
Quantum Closures for Neutrino Moment Transport
James P. Kneller, Julien Froustey, Evan B. Grohs +3
A computationally efficient method for calculating the transport of neutrino flavor in simulations is to use angular moments of the neutrino one-body reduced density matrix, i.e.,…
Asymptotic-state prediction for fast flavor transformation in neutron star mergers
Sherwood Richers, Julien Froustey, Somdutta Ghosh +2
Neutrino flavor instabilities appear to be omnipresent in dense astrophysical environments, thus presenting a challenge to large-scale simulations of core-collapse supernovae and n…
Inspecting neutrino flavor instabilities during proto-neutron star cooling phase in supernova: I. Spherically symmetric model
Masamichi Zaizen, Sherwood Richers, Hiroki Nagakura +2
In the standard model of core-collapse supernova (CCSN), all neutrinos are assumed to be in pure flavor eigenstates in CCSN cores, but the assumption becomes invalid if neutrino di…
Three-flavor, Full Momentum Space Neutrino Spin Oscillations in Neutron Star Mergers
Henry Purcell, Sherwood Richers, Amol V. Patwardhan +1
In the presence of anisotropic neutrino and antineutrino fluxes, the quantum kinetic equations drive coherent oscillations in neutrino helicity, frequently referred to as spin osci…
Neutrino flavor transformation with moments: application to fast flavor instabilities in neutron star mergers
Julien Froustey, Sherwood Richers, Evan Grohs +4
Neutrino evolution, of great importance in environments such as neutron star mergers (NSMs) because of their impact on explosive nucleosynthesis, is still poorly understood due to…
Chaos in Inhomogeneous Neutrino Fast Flavor Instability
Erick Urquilla, Sherwood Richers
In dense neutrino gases, the neutrino-neutrino coherent forward scattering gives rise to a complex flavor oscillation phenomenon not fully incorporated in simulations of neutron st…