{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:UE3VFO6GZGBHDBUEWL6JBU3I3X","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":"76cd5ccdd37b2be0cb7f4d83c40eead910c84c63997d0de8f4178c80e23df88e","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-06-09T14:38:32Z","title_canon_sha256":"94eff0a4ab9267135f8e264a1235ecf417a1d5f18141dc3c91de7d82e519148b"},"schema_version":"1.0","source":{"id":"1406.2198","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.2198","created_at":"2026-05-18T02:32:53Z"},{"alias_kind":"arxiv_version","alias_value":"1406.2198v2","created_at":"2026-05-18T02:32:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.2198","created_at":"2026-05-18T02:32:53Z"},{"alias_kind":"pith_short_12","alias_value":"UE3VFO6GZGBH","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_16","alias_value":"UE3VFO6GZGBHDBUE","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_8","alias_value":"UE3VFO6G","created_at":"2026-05-18T12:28:52Z"}],"graph_snapshots":[{"event_id":"sha256:e1d8bf794ceb8a4d6bdd63d46d98da6506a96c96663e86a695943d61721a68fb","target":"graph","created_at":"2026-05-18T02:32:53Z","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":"In this paper, we describe an experiment which was conducted to explore the macro-coherent amplification mechanism using a two-photon emission process from the first vibrationally-excited state of para-hydrogen molecule. Large coherence in the initial state was prepared by the adiabatic Raman population transfer method, and the lowest Stokes sideband was used as a trigger field. We observed the coherent two-photon emission consistent with the expectation of the paired super-radiance master equation.","authors_text":"Akihiro Yoshimi, Chiaki Ohae, Hideaki Hara, Itsuo Nakano, Koji Yoshimura, Masayuki Katsuragawa, Minoru TANAKA, Motohiko Yoshimura, Noboru Sasao, Satoshi Uetake, Susumu Kuma, Takahiko Masuda, Yuki Miyamoto","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-06-09T14:38:32Z","title":"Observation of coherent two-photon emission from the first vibrationally-excited state of hydrogen molecules"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.2198","kind":"arxiv","version":2},"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":"sha256:6703eafb64f1db5cd006d5a96c0d98486f87104be56477d824cb560bc7974d89","target":"record","created_at":"2026-05-18T02:32:53Z","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":"76cd5ccdd37b2be0cb7f4d83c40eead910c84c63997d0de8f4178c80e23df88e","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-06-09T14:38:32Z","title_canon_sha256":"94eff0a4ab9267135f8e264a1235ecf417a1d5f18141dc3c91de7d82e519148b"},"schema_version":"1.0","source":{"id":"1406.2198","kind":"arxiv","version":2}},"canonical_sha256":"a13752bbc6c982718684b2fc90d368ddf25b2966306b9ce3518f165327c6d985","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a13752bbc6c982718684b2fc90d368ddf25b2966306b9ce3518f165327c6d985","first_computed_at":"2026-05-18T02:32:53.862192Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:32:53.862192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EpaqVuya0s0THLm/hzgh1sNwnAOSg/T4nJqlpuQ3Q5TO1CZcpWhKlBYuLprX6KfpQ8+oB5oOHhG74LR4P1NbCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:32:53.862670Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.2198","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6703eafb64f1db5cd006d5a96c0d98486f87104be56477d824cb560bc7974d89","sha256:e1d8bf794ceb8a4d6bdd63d46d98da6506a96c96663e86a695943d61721a68fb"],"state_sha256":"711ccff8a2d779da7a1ab1ed77aa4061251b41954f248684eccdedced6c112d1"}