{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:O45WXZH7XXBOLNW2PTUNE6VULW","short_pith_number":"pith:O45WXZH7","schema_version":"1.0","canonical_sha256":"773b6be4ffbdc2e5b6da7ce8d27ab45db55f401b7309d4f644b5165875ad40ec","source":{"kind":"arxiv","id":"2310.10838","version":2},"attestation_state":"computed","paper":{"title":"Quantum tomography of helicity states for general scattering processes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th","quant-ph"],"primary_cat":"hep-ph","authors_text":"Alexander Bernal","submitted_at":"2023-10-16T21:23:42Z","abstract_excerpt":"Quantum tomography has become an indispensable tool in order to compute the density matrix $\\rho$ of quantum systems in Physics. Recently, it has further gained importance as a basic step to test entanglement and violation of Bell inequalities in High-Energy Particle Physics. In this work, we present the theoretical framework for reconstructing the helicity quantum initial state of a general scattering process. In particular, we perform an expansion of $\\rho$ over the irreducible tensor operators $\\{T^L_M\\}$ and compute the corresponding coefficients uniquely by averaging, under properly chose"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2310.10838","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2023-10-16T21:23:42Z","cross_cats_sorted":["hep-th","quant-ph"],"title_canon_sha256":"423dd9b7c39ab81131741a889d5a88a81f10057c226b24a9da27311c3a8aafcd","abstract_canon_sha256":"a83f0fb8c8330cad367f0c55fc8c20b691846e9d2bc969b6a6dbda7494a21e22"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:15:06.841399Z","signature_b64":"80Ri9b3m8mdRJnCBT26HzpNCKkVwmhdquIFKryOkWf48m4irGobVVqiSjgV42LdfhKoTPt3NGca7UzpKUst7Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"773b6be4ffbdc2e5b6da7ce8d27ab45db55f401b7309d4f644b5165875ad40ec","last_reissued_at":"2026-07-05T09:15:06.841032Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:15:06.841032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum tomography of helicity states for general scattering processes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th","quant-ph"],"primary_cat":"hep-ph","authors_text":"Alexander Bernal","submitted_at":"2023-10-16T21:23:42Z","abstract_excerpt":"Quantum tomography has become an indispensable tool in order to compute the density matrix $\\rho$ of quantum systems in Physics. Recently, it has further gained importance as a basic step to test entanglement and violation of Bell inequalities in High-Energy Particle Physics. In this work, we present the theoretical framework for reconstructing the helicity quantum initial state of a general scattering process. In particular, we perform an expansion of $\\rho$ over the irreducible tensor operators $\\{T^L_M\\}$ and compute the corresponding coefficients uniquely by averaging, under properly chose"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2310.10838","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2310.10838/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2310.10838","created_at":"2026-07-05T09:15:06.841088+00:00"},{"alias_kind":"arxiv_version","alias_value":"2310.10838v2","created_at":"2026-07-05T09:15:06.841088+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2310.10838","created_at":"2026-07-05T09:15:06.841088+00:00"},{"alias_kind":"pith_short_12","alias_value":"O45WXZH7XXBO","created_at":"2026-07-05T09:15:06.841088+00:00"},{"alias_kind":"pith_short_16","alias_value":"O45WXZH7XXBOLNW2","created_at":"2026-07-05T09:15:06.841088+00:00"},{"alias_kind":"pith_short_8","alias_value":"O45WXZH7","created_at":"2026-07-05T09:15:06.841088+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.11296","citing_title":"Tripartite Entanglement in $e^+ e^- \\to t \\bar{t} Z$","ref_index":102,"is_internal_anchor":false},{"citing_arxiv_id":"2509.07585","citing_title":"Particle Collisions & Quantum Entanglement in High-Energy Collisions","ref_index":90,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/O45WXZH7XXBOLNW2PTUNE6VULW","json":"https://pith.science/pith/O45WXZH7XXBOLNW2PTUNE6VULW.json","graph_json":"https://pith.science/api/pith-number/O45WXZH7XXBOLNW2PTUNE6VULW/graph.json","events_json":"https://pith.science/api/pith-number/O45WXZH7XXBOLNW2PTUNE6VULW/events.json","paper":"https://pith.science/paper/O45WXZH7"},"agent_actions":{"view_html":"https://pith.science/pith/O45WXZH7XXBOLNW2PTUNE6VULW","download_json":"https://pith.science/pith/O45WXZH7XXBOLNW2PTUNE6VULW.json","view_paper":"https://pith.science/paper/O45WXZH7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2310.10838&json=true","fetch_graph":"https://pith.science/api/pith-number/O45WXZH7XXBOLNW2PTUNE6VULW/graph.json","fetch_events":"https://pith.science/api/pith-number/O45WXZH7XXBOLNW2PTUNE6VULW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/O45WXZH7XXBOLNW2PTUNE6VULW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/O45WXZH7XXBOLNW2PTUNE6VULW/action/storage_attestation","attest_author":"https://pith.science/pith/O45WXZH7XXBOLNW2PTUNE6VULW/action/author_attestation","sign_citation":"https://pith.science/pith/O45WXZH7XXBOLNW2PTUNE6VULW/action/citation_signature","submit_replication":"https://pith.science/pith/O45WXZH7XXBOLNW2PTUNE6VULW/action/replication_record"}},"created_at":"2026-07-05T09:15:06.841088+00:00","updated_at":"2026-07-05T09:15:06.841088+00:00"}