{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:2Y7QEPZG4MASSZK4DLEOVQ6WB2","short_pith_number":"pith:2Y7QEPZG","schema_version":"1.0","canonical_sha256":"d63f023f26e30129655c1ac8eac3d60eb8fde6c11ed1a375bfc187721086d126","source":{"kind":"arxiv","id":"1908.01818","version":2},"attestation_state":"computed","paper":{"title":"Subradiant Dimer Excitations of Emitter Chains Coupled to a 1D Waveguide","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chuan Yu, Klaus M{\\o}lmer, Yu-Xiang Zhang","submitted_at":"2019-08-05T19:40:15Z","abstract_excerpt":"This Letter shows that chains of optical or microwave emitters coupled to a 1D waveguide support subradiant states with close pairs of excited emitters, which have longer lifetimes than even the most subradiant states with only a single excitation. Exact, analytical expressions for non-radiative excitation dimer states are obtained in the limit of infinite chains. To understand the mechanism underlying these states, we present a formal equivalence between subradiant dimers and single localized excitations around a chain defect (unoccupied site). Our analytical mapping permits extension to emit"},"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":"1908.01818","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-05T19:40:15Z","cross_cats_sorted":[],"title_canon_sha256":"71e915c755875e3d415a85ad31cde00cc389a3ca3be7ce5eae30374b9c876672","abstract_canon_sha256":"4d82bafe8d96f55ac3f90b8e744fb62e690208daee6dc25f2c5d57b2c0860068"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:43:35.639983Z","signature_b64":"+qirlIwQqK/u/Gi/tORfM3rVT/hkdtgDvO4z6uSsbzMGIkZnKiIxY1rET+pDdKqrypOqmIIJRemDpUKwz7/SDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d63f023f26e30129655c1ac8eac3d60eb8fde6c11ed1a375bfc187721086d126","last_reissued_at":"2026-07-05T00:43:35.639580Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:43:35.639580Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Subradiant Dimer Excitations of Emitter Chains Coupled to a 1D Waveguide","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chuan Yu, Klaus M{\\o}lmer, Yu-Xiang Zhang","submitted_at":"2019-08-05T19:40:15Z","abstract_excerpt":"This Letter shows that chains of optical or microwave emitters coupled to a 1D waveguide support subradiant states with close pairs of excited emitters, which have longer lifetimes than even the most subradiant states with only a single excitation. Exact, analytical expressions for non-radiative excitation dimer states are obtained in the limit of infinite chains. To understand the mechanism underlying these states, we present a formal equivalence between subradiant dimers and single localized excitations around a chain defect (unoccupied site). Our analytical mapping permits extension to emit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.01818","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/1908.01818/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":"1908.01818","created_at":"2026-07-05T00:43:35.639635+00:00"},{"alias_kind":"arxiv_version","alias_value":"1908.01818v2","created_at":"2026-07-05T00:43:35.639635+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.01818","created_at":"2026-07-05T00:43:35.639635+00:00"},{"alias_kind":"pith_short_12","alias_value":"2Y7QEPZG4MAS","created_at":"2026-07-05T00:43:35.639635+00:00"},{"alias_kind":"pith_short_16","alias_value":"2Y7QEPZG4MASSZK4","created_at":"2026-07-05T00:43:35.639635+00:00"},{"alias_kind":"pith_short_8","alias_value":"2Y7QEPZG","created_at":"2026-07-05T00:43:35.639635+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"1908.04844","citing_title":"Inelastic scattering of photon pairs in qubit arrays with subradiant states","ref_index":57,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/2Y7QEPZG4MASSZK4DLEOVQ6WB2","json":"https://pith.science/pith/2Y7QEPZG4MASSZK4DLEOVQ6WB2.json","graph_json":"https://pith.science/api/pith-number/2Y7QEPZG4MASSZK4DLEOVQ6WB2/graph.json","events_json":"https://pith.science/api/pith-number/2Y7QEPZG4MASSZK4DLEOVQ6WB2/events.json","paper":"https://pith.science/paper/2Y7QEPZG"},"agent_actions":{"view_html":"https://pith.science/pith/2Y7QEPZG4MASSZK4DLEOVQ6WB2","download_json":"https://pith.science/pith/2Y7QEPZG4MASSZK4DLEOVQ6WB2.json","view_paper":"https://pith.science/paper/2Y7QEPZG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1908.01818&json=true","fetch_graph":"https://pith.science/api/pith-number/2Y7QEPZG4MASSZK4DLEOVQ6WB2/graph.json","fetch_events":"https://pith.science/api/pith-number/2Y7QEPZG4MASSZK4DLEOVQ6WB2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2Y7QEPZG4MASSZK4DLEOVQ6WB2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2Y7QEPZG4MASSZK4DLEOVQ6WB2/action/storage_attestation","attest_author":"https://pith.science/pith/2Y7QEPZG4MASSZK4DLEOVQ6WB2/action/author_attestation","sign_citation":"https://pith.science/pith/2Y7QEPZG4MASSZK4DLEOVQ6WB2/action/citation_signature","submit_replication":"https://pith.science/pith/2Y7QEPZG4MASSZK4DLEOVQ6WB2/action/replication_record"}},"created_at":"2026-07-05T00:43:35.639635+00:00","updated_at":"2026-07-05T00:43:35.639635+00:00"}