{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:XP6F5FRQHQFM3G4EAS3VGRN54C","short_pith_number":"pith:XP6F5FRQ","canonical_record":{"source":{"id":"0911.5379","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2009-11-28T06:57:54Z","cross_cats_sorted":[],"title_canon_sha256":"f4f6ea6747e12c5a6ead518dfd224a08f9fe46747fdd5dd426f0d58e35e1315e","abstract_canon_sha256":"29aa0d895108e15385bb8bc0ceb5786f1bf29b69da21c210273b1f0d8dc778b3"},"schema_version":"1.0"},"canonical_sha256":"bbfc5e96303c0acd9b8404b75345bde08390485eaf35b0b311340fb44238dac7","source":{"kind":"arxiv","id":"0911.5379","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.5379","created_at":"2026-05-18T02:10:36Z"},{"alias_kind":"arxiv_version","alias_value":"0911.5379v1","created_at":"2026-05-18T02:10:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.5379","created_at":"2026-05-18T02:10:36Z"},{"alias_kind":"pith_short_12","alias_value":"XP6F5FRQHQFM","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"XP6F5FRQHQFM3G4E","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"XP6F5FRQ","created_at":"2026-05-18T12:26:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:XP6F5FRQHQFM3G4EAS3VGRN54C","target":"record","payload":{"canonical_record":{"source":{"id":"0911.5379","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2009-11-28T06:57:54Z","cross_cats_sorted":[],"title_canon_sha256":"f4f6ea6747e12c5a6ead518dfd224a08f9fe46747fdd5dd426f0d58e35e1315e","abstract_canon_sha256":"29aa0d895108e15385bb8bc0ceb5786f1bf29b69da21c210273b1f0d8dc778b3"},"schema_version":"1.0"},"canonical_sha256":"bbfc5e96303c0acd9b8404b75345bde08390485eaf35b0b311340fb44238dac7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:36.006026Z","signature_b64":"N0ftgReFZqz3tmyno+aDW32wAmXUn6kvl5u78BE+s+K7dMpzi0N59OI1nLBL9GhikGw1jNzsO0mG4HCohHv7AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bbfc5e96303c0acd9b8404b75345bde08390485eaf35b0b311340fb44238dac7","last_reissued_at":"2026-05-18T02:10:36.005302Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:36.005302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0911.5379","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:10:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y51SK7PhKxtBJAN5llc15RRCFSl/BtG/E6Y6LFlvMbZ6p+N9SSfH4fub25BrUly/f+4EFJ1d9hhLgsqdCLnPAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:15:44.733144Z"},"content_sha256":"e1674dde338d1a9c7db3f055dfe7ed0acc6210895124aa2dd87fe69f9352713b","schema_version":"1.0","event_id":"sha256:e1674dde338d1a9c7db3f055dfe7ed0acc6210895124aa2dd87fe69f9352713b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:XP6F5FRQHQFM3G4EAS3VGRN54C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High efficiency Four-Wave Mixing in a five-level atomic System based on the two electromagnetically induced transparency","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"Shuangxi Zhang, Zhiping Wang","submitted_at":"2009-11-28T06:57:54Z","abstract_excerpt":"We have analyzed a five-level $\\wedge$-configuration Four-Wave Mixing (FWM) scheme for obtaining a high-efficiency FWM based on the two electromagnetically induced transparency. We find that the maximum FWM efficiency is nearly 30%, which is orders of magnitude larger than previous schemes based on the two electromagnetically induced transparency. Our scheme may provide a new possibility for technological applications such as nonlinear spectroscopy at very low light intensity, quantum single-photon nonlinear optics and quantum information science."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.5379","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":""},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:10:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6jcOc2XYKr4prZsHJOAvrlQpyRGOZ9dlf4TvRgpxjdlGSPOhUf37bveCS0CdvHvG8+MuOQW/iAM/sJ5z+23zBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:15:44.733804Z"},"content_sha256":"868a84ab3274552fac102738327239638d03aa20cf16b20c69119316e3364c7a","schema_version":"1.0","event_id":"sha256:868a84ab3274552fac102738327239638d03aa20cf16b20c69119316e3364c7a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XP6F5FRQHQFM3G4EAS3VGRN54C/bundle.json","state_url":"https://pith.science/pith/XP6F5FRQHQFM3G4EAS3VGRN54C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XP6F5FRQHQFM3G4EAS3VGRN54C/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-28T20:15:44Z","links":{"resolver":"https://pith.science/pith/XP6F5FRQHQFM3G4EAS3VGRN54C","bundle":"https://pith.science/pith/XP6F5FRQHQFM3G4EAS3VGRN54C/bundle.json","state":"https://pith.science/pith/XP6F5FRQHQFM3G4EAS3VGRN54C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XP6F5FRQHQFM3G4EAS3VGRN54C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:XP6F5FRQHQFM3G4EAS3VGRN54C","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"29aa0d895108e15385bb8bc0ceb5786f1bf29b69da21c210273b1f0d8dc778b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2009-11-28T06:57:54Z","title_canon_sha256":"f4f6ea6747e12c5a6ead518dfd224a08f9fe46747fdd5dd426f0d58e35e1315e"},"schema_version":"1.0","source":{"id":"0911.5379","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.5379","created_at":"2026-05-18T02:10:36Z"},{"alias_kind":"arxiv_version","alias_value":"0911.5379v1","created_at":"2026-05-18T02:10:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.5379","created_at":"2026-05-18T02:10:36Z"},{"alias_kind":"pith_short_12","alias_value":"XP6F5FRQHQFM","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"XP6F5FRQHQFM3G4E","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"XP6F5FRQ","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:868a84ab3274552fac102738327239638d03aa20cf16b20c69119316e3364c7a","target":"graph","created_at":"2026-05-18T02:10:36Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We have analyzed a five-level $\\wedge$-configuration Four-Wave Mixing (FWM) scheme for obtaining a high-efficiency FWM based on the two electromagnetically induced transparency. We find that the maximum FWM efficiency is nearly 30%, which is orders of magnitude larger than previous schemes based on the two electromagnetically induced transparency. Our scheme may provide a new possibility for technological applications such as nonlinear spectroscopy at very low light intensity, quantum single-photon nonlinear optics and quantum information science.","authors_text":"Shuangxi Zhang, Zhiping Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2009-11-28T06:57:54Z","title":"High efficiency Four-Wave Mixing in a five-level atomic System based on the two electromagnetically induced transparency"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.5379","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:e1674dde338d1a9c7db3f055dfe7ed0acc6210895124aa2dd87fe69f9352713b","target":"record","created_at":"2026-05-18T02:10:36Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"29aa0d895108e15385bb8bc0ceb5786f1bf29b69da21c210273b1f0d8dc778b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2009-11-28T06:57:54Z","title_canon_sha256":"f4f6ea6747e12c5a6ead518dfd224a08f9fe46747fdd5dd426f0d58e35e1315e"},"schema_version":"1.0","source":{"id":"0911.5379","kind":"arxiv","version":1}},"canonical_sha256":"bbfc5e96303c0acd9b8404b75345bde08390485eaf35b0b311340fb44238dac7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bbfc5e96303c0acd9b8404b75345bde08390485eaf35b0b311340fb44238dac7","first_computed_at":"2026-05-18T02:10:36.005302Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:10:36.005302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N0ftgReFZqz3tmyno+aDW32wAmXUn6kvl5u78BE+s+K7dMpzi0N59OI1nLBL9GhikGw1jNzsO0mG4HCohHv7AA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:10:36.006026Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.5379","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e1674dde338d1a9c7db3f055dfe7ed0acc6210895124aa2dd87fe69f9352713b","sha256:868a84ab3274552fac102738327239638d03aa20cf16b20c69119316e3364c7a"],"state_sha256":"da62c0c400ab01339b46d1a2911d02b0886c76b980250a6aba1e277fec7b2231"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"awTs0zFLv6B4FtgZ1c8+w3qL77X5izHMQ3aKswymMNdyQT0FBi1axg2EDvthzJLiZjOV7MU+bVx/+nrZuldAAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T20:15:44.737264Z","bundle_sha256":"983c4918576a300aaf515ac181ade5803eecef6b534a4bf5ffeb676e985d1978"}}