{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:MOQCMHKIDMCPLPYWMRRE76HDIL","short_pith_number":"pith:MOQCMHKI","schema_version":"1.0","canonical_sha256":"63a0261d481b04f5bf1664624ff8e342ea10406ec068c492cd676791fc7f7e57","source":{"kind":"arxiv","id":"2306.03319","version":1},"attestation_state":"computed","paper":{"title":"Entanglement distribution in two-dimensional square grid network","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Eneet Kaur, Saikat Guha","submitted_at":"2023-06-06T00:04:19Z","abstract_excerpt":"We study entanglement generation in a quantum network where repeater nodes can perform $n$-qubit Greenberger-Horne-Zeilinger(GHZ) swaps, i.e., projective measurements, to fuse $n$ imperfect-Fidelity entangled-state fragments. We show that the distance-independent entanglement distribution rate found previously for this protocol, assuming perfectly-entangled states at the link level, does not survive. This is true also in two modified protocols we study: one that incorporates $l \\to 1$ link-level distillation and another that spatially constrains the repeater nodes involved in the swaps. We obt"},"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":"2306.03319","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-06-06T00:04:19Z","cross_cats_sorted":[],"title_canon_sha256":"a7ad84e33fccb490fed1f7febc42fb005d0d42615566e9972d1d8128d435baca","abstract_canon_sha256":"ad34bc5f049bbd4d812fbffdfc3b9aea85d6e28d35e4fa1b8b7a32d9a3d49acf"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:17:56.759375Z","signature_b64":"5K3k/F2lcWrADfxu7/Qf4e4gdB+IfqCEseFmXnTzAyB9CXuMDdIYbraP4IF47t8ncgeM47OavEQvn7TE7MUvAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63a0261d481b04f5bf1664624ff8e342ea10406ec068c492cd676791fc7f7e57","last_reissued_at":"2026-07-05T06:17:56.758868Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:17:56.758868Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Entanglement distribution in two-dimensional square grid network","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Eneet Kaur, Saikat Guha","submitted_at":"2023-06-06T00:04:19Z","abstract_excerpt":"We study entanglement generation in a quantum network where repeater nodes can perform $n$-qubit Greenberger-Horne-Zeilinger(GHZ) swaps, i.e., projective measurements, to fuse $n$ imperfect-Fidelity entangled-state fragments. We show that the distance-independent entanglement distribution rate found previously for this protocol, assuming perfectly-entangled states at the link level, does not survive. This is true also in two modified protocols we study: one that incorporates $l \\to 1$ link-level distillation and another that spatially constrains the repeater nodes involved in the swaps. We obt"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.03319","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/2306.03319/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":"2306.03319","created_at":"2026-07-05T06:17:56.758932+00:00"},{"alias_kind":"arxiv_version","alias_value":"2306.03319v1","created_at":"2026-07-05T06:17:56.758932+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2306.03319","created_at":"2026-07-05T06:17:56.758932+00:00"},{"alias_kind":"pith_short_12","alias_value":"MOQCMHKIDMCP","created_at":"2026-07-05T06:17:56.758932+00:00"},{"alias_kind":"pith_short_16","alias_value":"MOQCMHKIDMCPLPYW","created_at":"2026-07-05T06:17:56.758932+00:00"},{"alias_kind":"pith_short_8","alias_value":"MOQCMHKI","created_at":"2026-07-05T06:17:56.758932+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2509.02992","citing_title":"Programmable Quantum Matter: Heralding Large Cluster States in Driven Inhomogeneous Spin Ensembles","ref_index":22,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MOQCMHKIDMCPLPYWMRRE76HDIL","json":"https://pith.science/pith/MOQCMHKIDMCPLPYWMRRE76HDIL.json","graph_json":"https://pith.science/api/pith-number/MOQCMHKIDMCPLPYWMRRE76HDIL/graph.json","events_json":"https://pith.science/api/pith-number/MOQCMHKIDMCPLPYWMRRE76HDIL/events.json","paper":"https://pith.science/paper/MOQCMHKI"},"agent_actions":{"view_html":"https://pith.science/pith/MOQCMHKIDMCPLPYWMRRE76HDIL","download_json":"https://pith.science/pith/MOQCMHKIDMCPLPYWMRRE76HDIL.json","view_paper":"https://pith.science/paper/MOQCMHKI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2306.03319&json=true","fetch_graph":"https://pith.science/api/pith-number/MOQCMHKIDMCPLPYWMRRE76HDIL/graph.json","fetch_events":"https://pith.science/api/pith-number/MOQCMHKIDMCPLPYWMRRE76HDIL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MOQCMHKIDMCPLPYWMRRE76HDIL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MOQCMHKIDMCPLPYWMRRE76HDIL/action/storage_attestation","attest_author":"https://pith.science/pith/MOQCMHKIDMCPLPYWMRRE76HDIL/action/author_attestation","sign_citation":"https://pith.science/pith/MOQCMHKIDMCPLPYWMRRE76HDIL/action/citation_signature","submit_replication":"https://pith.science/pith/MOQCMHKIDMCPLPYWMRRE76HDIL/action/replication_record"}},"created_at":"2026-07-05T06:17:56.758932+00:00","updated_at":"2026-07-05T06:17:56.758932+00:00"}