{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:KDKWGPBSTNOYX7KLEW7WBSM7TF","short_pith_number":"pith:KDKWGPBS","schema_version":"1.0","canonical_sha256":"50d5633c329b5d8bfd4b25bf60c99f994b3a32a9467f3103fb8a48c160fe6cfb","source":{"kind":"arxiv","id":"2506.23197","version":2},"attestation_state":"computed","paper":{"title":"Quantum Estimation in QED Scattering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"quant-ph","authors_text":"Alessio Serafini, Preslav Asenov, Wenhan Zhang","submitted_at":"2025-06-29T11:58:58Z","abstract_excerpt":"We tackle the issue of estimating dynamical parameters in quantum electrodynamics. We numerically compute the quantum Fisher information matrix (QFIM) of physical parameters in electron-muon and Compton scattering at tree level. In particular, we consider the estimation of centre-of-mass three-momentum magnitude and polar scattering angle through measurements on the internal degrees of freedom (helicity or polarisation) of the scattered particles. Computations are carried out for pure and maximally mixed initial states. The QFIM values are then used to compute the quantum Cram\\'er-Rao lower bo"},"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":"2506.23197","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-06-29T11:58:58Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"f6c9a017b1de4dadc3e720a1f4d34f37751013498011d7272221e377806ee415","abstract_canon_sha256":"eec68e53984470c7f39a058e7c94f987da3c74173c38c54fb73f4ecac6c530d0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:05:18.262662Z","signature_b64":"tJ/rBbvHsFWJc/NURiRRlRJZmHKuuuWM383n+14zwQAS+RV8SULYPECL/1IXBSKZHVu9NUhJe2a+cGh1JgxTDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"50d5633c329b5d8bfd4b25bf60c99f994b3a32a9467f3103fb8a48c160fe6cfb","last_reissued_at":"2026-07-05T12:05:18.260067Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:05:18.260067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum Estimation in QED Scattering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"quant-ph","authors_text":"Alessio Serafini, Preslav Asenov, Wenhan Zhang","submitted_at":"2025-06-29T11:58:58Z","abstract_excerpt":"We tackle the issue of estimating dynamical parameters in quantum electrodynamics. We numerically compute the quantum Fisher information matrix (QFIM) of physical parameters in electron-muon and Compton scattering at tree level. In particular, we consider the estimation of centre-of-mass three-momentum magnitude and polar scattering angle through measurements on the internal degrees of freedom (helicity or polarisation) of the scattered particles. Computations are carried out for pure and maximally mixed initial states. The QFIM values are then used to compute the quantum Cram\\'er-Rao lower bo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.23197","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/2506.23197/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":"2506.23197","created_at":"2026-07-05T12:05:18.260139+00:00"},{"alias_kind":"arxiv_version","alias_value":"2506.23197v2","created_at":"2026-07-05T12:05:18.260139+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.23197","created_at":"2026-07-05T12:05:18.260139+00:00"},{"alias_kind":"pith_short_12","alias_value":"KDKWGPBSTNOY","created_at":"2026-07-05T12:05:18.260139+00:00"},{"alias_kind":"pith_short_16","alias_value":"KDKWGPBSTNOYX7KL","created_at":"2026-07-05T12:05:18.260139+00:00"},{"alias_kind":"pith_short_8","alias_value":"KDKWGPBS","created_at":"2026-07-05T12:05:18.260139+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2608.05330","citing_title":"Photon-nucleon entanglement in Compton scattering at low and high energies","ref_index":65,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/KDKWGPBSTNOYX7KLEW7WBSM7TF","json":"https://pith.science/pith/KDKWGPBSTNOYX7KLEW7WBSM7TF.json","graph_json":"https://pith.science/api/pith-number/KDKWGPBSTNOYX7KLEW7WBSM7TF/graph.json","events_json":"https://pith.science/api/pith-number/KDKWGPBSTNOYX7KLEW7WBSM7TF/events.json","paper":"https://pith.science/paper/KDKWGPBS"},"agent_actions":{"view_html":"https://pith.science/pith/KDKWGPBSTNOYX7KLEW7WBSM7TF","download_json":"https://pith.science/pith/KDKWGPBSTNOYX7KLEW7WBSM7TF.json","view_paper":"https://pith.science/paper/KDKWGPBS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2506.23197&json=true","fetch_graph":"https://pith.science/api/pith-number/KDKWGPBSTNOYX7KLEW7WBSM7TF/graph.json","fetch_events":"https://pith.science/api/pith-number/KDKWGPBSTNOYX7KLEW7WBSM7TF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KDKWGPBSTNOYX7KLEW7WBSM7TF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KDKWGPBSTNOYX7KLEW7WBSM7TF/action/storage_attestation","attest_author":"https://pith.science/pith/KDKWGPBSTNOYX7KLEW7WBSM7TF/action/author_attestation","sign_citation":"https://pith.science/pith/KDKWGPBSTNOYX7KLEW7WBSM7TF/action/citation_signature","submit_replication":"https://pith.science/pith/KDKWGPBSTNOYX7KLEW7WBSM7TF/action/replication_record"}},"created_at":"2026-07-05T12:05:18.260139+00:00","updated_at":"2026-07-05T12:05:18.260139+00:00"}