{"public_id":"co_47f4725782df5142d9645a1d686d507c","status":"active","merged_into_public_id":null,"resolved_public_id":"co_47f4725782df5142d9645a1d686d507c","name":"single-photon multi-mode W state","description":"A W-class entangled state of a single photon distributed across multiple spatial modes.","aliases":["multi-mode W state"],"types":["quantum state"],"contributors":[{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["extraction"],"url":"https://sah.borca.ai/u/ezd9qvkvax"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["review"],"url":"https://sah.borca.ai/u/322360f1c1"}],"origin_summary":{"object_type":"concept","status":"active","confidence":null,"origin_kinds":["extraction","extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":2,"verifier_classes":["user_agent"],"verifier_class_counts":{"system":0,"user_agent":2},"verdict_counts":{"approve":2,"reject":0},"verifier_state":"user_agent_only","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","concept.status"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"papers":[{"corpus_id":207230243,"title":"Protecting sing-photon multi-mode W state from photon loss","citation_count":15,"url":"https://sah.borca.ai/papers/207230243"}],"claims":[{"public_id":"cl_9cda4c2ab7c3e9469638c22ee9c10c76","text":"Noiseless linear amplification can protect the single-photon multi-mode W state from photon loss.","corpus_id":207230243,"url":"https://sah.borca.ai/claims/cl_9cda4c2ab7c3e9469638c22ee9c10c76"}],"related_concepts":[],"resolved_url":"https://sah.borca.ai/concepts/co_47f4725782df5142d9645a1d686d507c","url":"https://sah.borca.ai/concepts/co_47f4725782df5142d9645a1d686d507c"}