{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:H2HH6YSAKJB3WFZUL5JLWP7VVW","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"6fd22ea08a9aba84ffaf72daac77b5e86b7fbcdadb8063d5fa54415d35740812","cross_cats_sorted":["astro-ph.HE","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-02-19T22:47:14Z","title_canon_sha256":"838c9bae96094ba2fe42dfe869ad4e667f6a78c6297e9870c85454e7043d9fba"},"schema_version":"1.0","source":{"id":"2102.10188","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.10188","created_at":"2026-07-05T03:33:04Z"},{"alias_kind":"arxiv_version","alias_value":"2102.10188v2","created_at":"2026-07-05T03:33:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.10188","created_at":"2026-07-05T03:33:04Z"},{"alias_kind":"pith_short_12","alias_value":"H2HH6YSAKJB3","created_at":"2026-07-05T03:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"H2HH6YSAKJB3WFZU","created_at":"2026-07-05T03:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"H2HH6YSA","created_at":"2026-07-05T03:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:90f27668a05114232f5438d58fca9ad32ccc9ab7210d331ceb4a2ef796eff8c2","target":"graph","created_at":"2026-07-05T03:33:04Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2102.10188/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Collective neutrino oscillations play a crucial role in transporting lepton flavor in astrophysical settings, such as supernovae, where the neutrino density is large. In this regime, neutrino-neutrino interactions are important and simulations in the mean-field approximation show evidence for collective oscillations occurring at time scales much larger than those associated with vacuum oscillations. In this work, we study the out-of-equilibrium dynamics of a corresponding spin model using Matrix Product States and show how collective bipolar oscillations can be triggered by many-body correlati","authors_text":"Alessandro Roggero","cross_cats":["astro-ph.HE","nucl-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-02-19T22:47:14Z","title":"Entanglement and Many-Body effects in Collective Neutrino Oscillations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.10188","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:2044106cbacbe5453ed74e568ada5b76a10db03e62c3b8241ae24108f262182a","target":"record","created_at":"2026-07-05T03:33:04Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"6fd22ea08a9aba84ffaf72daac77b5e86b7fbcdadb8063d5fa54415d35740812","cross_cats_sorted":["astro-ph.HE","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-02-19T22:47:14Z","title_canon_sha256":"838c9bae96094ba2fe42dfe869ad4e667f6a78c6297e9870c85454e7043d9fba"},"schema_version":"1.0","source":{"id":"2102.10188","kind":"arxiv","version":2}},"canonical_sha256":"3e8e7f62405243bb17345f52bb3ff5ada99d7e532fe4186bddb3733ba44b3583","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e8e7f62405243bb17345f52bb3ff5ada99d7e532fe4186bddb3733ba44b3583","first_computed_at":"2026-07-05T03:33:04.333597Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:33:04.333597Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sofrcLPopK6flyZXe4tm+DGK4GkAOykWhYwmI2dc47Sj9yEL4AE8m1N67bVqGz2zkKHFtIShiY0SUjU2b0hyDg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:33:04.334052Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.10188","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2044106cbacbe5453ed74e568ada5b76a10db03e62c3b8241ae24108f262182a","sha256:90f27668a05114232f5438d58fca9ad32ccc9ab7210d331ceb4a2ef796eff8c2"],"state_sha256":"2b4e269833b48714e72a37aa3038b7d6710789e39395e993ddd36cc9873f8172"}