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Many-body collective neutrino oscillations: recent developments

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arxiv 2301.00342 v1 pith:U42OOYPY submitted 2023-01-01 hep-ph astro-ph.HEnucl-thquant-ph

classification hep-phastro-ph.HEnucl-thquant-ph
keywords flavorneutrinoneutrinoscoherentcollectiveenvironmentsmany-bodyquantum
verification ladder T0 review T1 audit T2 compute T3 formal
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Neutrino flavor transformations in core-collapse supernovae and binary neutron star mergers represent a complex and unsolved problem that is integral to our understanding of the dynamics and nucleosynthesis in these environments. The high number densities of neutrinos present in these environments can engender various collective effects in neutrino flavor transformations, driven either by neutrino-neutrino coherent scattering, or in some cases, through collisional (incoherent) interactions. An ensemble of neutrinos undergoing coherent scattering among themselves is an interacting quantum many-body system -- as such, there is a tantalising prospect of quantum entanglement developing between the neutrinos, which can leave imprints on their flavor evolution histories. Here, we seek to summarize recent progress that has been made towards understanding this phenomenon.

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Cited by 5 Pith papers

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

  1. Three-flavor supernova neutrino simulation using a hybrid quantum-classical algorithm with qutrits

    hep-ph 2026-05 unverdicted novelty 7.0 of 10

    A hybrid qutrit-based algorithm simulates supernova neutrino flavor evolution and matches exact classical integration up to moderate times.

  2. Collective neutrino-antineutrino pair oscillations

    hep-ph 2026-04 unverdicted novelty 7.0 of 10

    In anisotropic neutrino gases, νν-bar pairing instabilities emerge when the excessive pair-occupation number distribution changes sign, producing pair conversions at growth rates comparable to fast flavor instabilities.

  3. Collective neutrino oscillations: Many-body non-forward effects and non-classicality

    hep-ph 2026-06 unverdicted novelty 5.0 of 10

    In a neutrino-gas model, the many-body Hamiltonian yields different evolution timescales and asymptotics than the quantum kinetic approach with collisions, while quantum resources for the full case sit at the low end ...

  4. Neutrino helicity oscillations in astrophysical environments: a many-body approach

    hep-ph 2026-05 unverdicted novelty 5.0 of 10

    Many-body neutrino calculations in simple momentum-state configurations yield helicity conversion probabilities orders of magnitude above mean-field results due to momentum exchange.

  5. Singular Perturbations of Hamilton-Jacobi Equations in the Wasserstein Space

    math.OC 2025-08 unverdicted novelty 5.0 of 10

    The abstract claims a singular-perturbation limit theorem for second-order Hamilton-Jacobi equations on the Wasserstein space, but the submitted full text does not contain that paper.

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