{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:UGG4V2SDZO6XUB65SALRMCWJZ4","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":"5a4f0aab9554c6e240f9016f5d1ecb19e86b8408c2a1a5469167923dabc303b8","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-11-15T18:37:47Z","title_canon_sha256":"388802fce82aef6506b1e5c07979cc89c062a16a63612c692fa64f9edfe564b6"},"schema_version":"1.0","source":{"id":"1711.05720","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.05720","created_at":"2026-05-18T00:12:56Z"},{"alias_kind":"arxiv_version","alias_value":"1711.05720v2","created_at":"2026-05-18T00:12:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.05720","created_at":"2026-05-18T00:12:56Z"},{"alias_kind":"pith_short_12","alias_value":"UGG4V2SDZO6X","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"UGG4V2SDZO6XUB65","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"UGG4V2SD","created_at":"2026-05-18T12:31:46Z"}],"graph_snapshots":[{"event_id":"sha256:0fb2aa11847d94d07d7f8f270eb88fc4ce2cdbc2111faef14034e9b83401894e","target":"graph","created_at":"2026-05-18T00:12:56Z","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 report the first observation of electromagnetically induced transparency (EIT) in an isotopically purified Nd$^{3+}$:YLiF$_4$ crystal. This crystal demonstrates inhomogeneous broadening of optical transitions of about 35 MHz. EIT is observed in a symmetrical $\\Lambda$-like system formed by two hyperfine sublevels of the ground state corresponding to a zero first order Zeeman (ZEFOZ) transition and a hyperfine sublevel of the excited state, which is not coupled to other ground-state sublevels. It is found that transmission of the probe field as a function of the two-photon detuning demonstra","authors_text":"Alexey Kalachev, Dmitry Sobgayda, Ilya Zelensky, Lev Gushchin, Nikolay Nizov, Rinat Akhmedzhanov, Vladimir Nizov","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-11-15T18:37:47Z","title":"Electromagnetically induced transparency in an isotopically purified Nd$^{3+}$:YLiF$_4$ crystal"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.05720","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":"sha256:1ab7df198cca4aec355b685daba3dc570e39639e4c2ed7cd0f9271b7944fecea","target":"record","created_at":"2026-05-18T00:12:56Z","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":"5a4f0aab9554c6e240f9016f5d1ecb19e86b8408c2a1a5469167923dabc303b8","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-11-15T18:37:47Z","title_canon_sha256":"388802fce82aef6506b1e5c07979cc89c062a16a63612c692fa64f9edfe564b6"},"schema_version":"1.0","source":{"id":"1711.05720","kind":"arxiv","version":2}},"canonical_sha256":"a18dcaea43cbbd7a07dd9017160ac9cf29832b3c1f35b859e3b229174cc99fc4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a18dcaea43cbbd7a07dd9017160ac9cf29832b3c1f35b859e3b229174cc99fc4","first_computed_at":"2026-05-18T00:12:56.207426Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:12:56.207426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xuXc4WsViY1LcFLuUkbH9fd9O6SHAi149Z+N10PxUFB8evKJNN9CB6+xBFwhO+guUrQMhRrzAniIzBMnjhsEDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:12:56.208184Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.05720","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1ab7df198cca4aec355b685daba3dc570e39639e4c2ed7cd0f9271b7944fecea","sha256:0fb2aa11847d94d07d7f8f270eb88fc4ce2cdbc2111faef14034e9b83401894e"],"state_sha256":"aeb548118dab2a4ca3cf66a8ce1460bff7b4d44806c1316f2eedf59f3f8bd00b"}