{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:LHESBKXHHS6CMIABNT4BNICSCM","short_pith_number":"pith:LHESBKXH","schema_version":"1.0","canonical_sha256":"59c920aae73cbc2620016cf816a0521334f84555fc6e0dc895c7bfe8c499ab88","source":{"kind":"arxiv","id":"2605.26867","version":1},"attestation_state":"computed","paper":{"title":"Entangling power and fidelity diagnostic for bipartite quantum channels","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Gianluigi Tartaglione, Karol \\.Zyczkowski, Marcin Rudzi\\'nski","submitted_at":"2026-05-26T11:25:54Z","abstract_excerpt":"We study two complementary diagnostics of bipartite quantum channels, namely fidelity preservation across different classes of input states and entanglement generation from product inputs, given by properly defined entangling power for bipartite channels. We show that the fidelity averaged over any fixed Schmidt-coefficients local-unitary orbit for equal local dimensions is completely determined by average input-output fidelity and its restriction to product inputs. We also introduce concurrence- and negativity-based entangling power for 2-qubit channels, prove their convexity and monotonicity"},"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":"2605.26867","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-26T11:25:54Z","cross_cats_sorted":[],"title_canon_sha256":"cf231de95ef173fd081b53ea298e1f4bf3101ba1ef01001d2183359367b4999f","abstract_canon_sha256":"843cc1ba850f48438936b86128423db8180a5f8c2215ecc4143ef1e8d71f2a45"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-27T01:06:16.549548Z","signature_b64":"BfkRIM4/TsIYP64JMcqi6C/Z5JfyRdUGyI43nMsP9092F8LZb8l7PSKmM+Swgp5VK6BZ7ZwiZ22foUPJYwxNBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"59c920aae73cbc2620016cf816a0521334f84555fc6e0dc895c7bfe8c499ab88","last_reissued_at":"2026-05-27T01:06:16.548789Z","signature_status":"signed_v1","first_computed_at":"2026-05-27T01:06:16.548789Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Entangling power and fidelity diagnostic for bipartite quantum channels","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Gianluigi Tartaglione, Karol \\.Zyczkowski, Marcin Rudzi\\'nski","submitted_at":"2026-05-26T11:25:54Z","abstract_excerpt":"We study two complementary diagnostics of bipartite quantum channels, namely fidelity preservation across different classes of input states and entanglement generation from product inputs, given by properly defined entangling power for bipartite channels. We show that the fidelity averaged over any fixed Schmidt-coefficients local-unitary orbit for equal local dimensions is completely determined by average input-output fidelity and its restriction to product inputs. We also introduce concurrence- and negativity-based entangling power for 2-qubit channels, prove their convexity and monotonicity"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.26867","kind":"arxiv","version":1},"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/2605.26867/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":"2605.26867","created_at":"2026-05-27T01:06:16.548933+00:00"},{"alias_kind":"arxiv_version","alias_value":"2605.26867v1","created_at":"2026-05-27T01:06:16.548933+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.26867","created_at":"2026-05-27T01:06:16.548933+00:00"},{"alias_kind":"pith_short_12","alias_value":"LHESBKXHHS6C","created_at":"2026-05-27T01:06:16.548933+00:00"},{"alias_kind":"pith_short_16","alias_value":"LHESBKXHHS6CMIAB","created_at":"2026-05-27T01:06:16.548933+00:00"},{"alias_kind":"pith_short_8","alias_value":"LHESBKXH","created_at":"2026-05-27T01:06:16.548933+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/LHESBKXHHS6CMIABNT4BNICSCM","json":"https://pith.science/pith/LHESBKXHHS6CMIABNT4BNICSCM.json","graph_json":"https://pith.science/api/pith-number/LHESBKXHHS6CMIABNT4BNICSCM/graph.json","events_json":"https://pith.science/api/pith-number/LHESBKXHHS6CMIABNT4BNICSCM/events.json","paper":"https://pith.science/paper/LHESBKXH"},"agent_actions":{"view_html":"https://pith.science/pith/LHESBKXHHS6CMIABNT4BNICSCM","download_json":"https://pith.science/pith/LHESBKXHHS6CMIABNT4BNICSCM.json","view_paper":"https://pith.science/paper/LHESBKXH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2605.26867&json=true","fetch_graph":"https://pith.science/api/pith-number/LHESBKXHHS6CMIABNT4BNICSCM/graph.json","fetch_events":"https://pith.science/api/pith-number/LHESBKXHHS6CMIABNT4BNICSCM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LHESBKXHHS6CMIABNT4BNICSCM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LHESBKXHHS6CMIABNT4BNICSCM/action/storage_attestation","attest_author":"https://pith.science/pith/LHESBKXHHS6CMIABNT4BNICSCM/action/author_attestation","sign_citation":"https://pith.science/pith/LHESBKXHHS6CMIABNT4BNICSCM/action/citation_signature","submit_replication":"https://pith.science/pith/LHESBKXHHS6CMIABNT4BNICSCM/action/replication_record"}},"created_at":"2026-05-27T01:06:16.548933+00:00","updated_at":"2026-05-27T01:06:16.548933+00:00"}