{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:DTSGSG7WUU2DEG3EPWIGE5V4BN","short_pith_number":"pith:DTSGSG7W","schema_version":"1.0","canonical_sha256":"1ce4691bf6a534321b647d906276bc0b58af0f40e0a66fdbc479975ff3021f48","source":{"kind":"arxiv","id":"1601.07439","version":1},"attestation_state":"computed","paper":{"title":"Measurements of the ion velocity distribution in an ultracold neutral plasma derived from a cold, dense Rydberg gas","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.plasm-ph"],"primary_cat":"physics.atom-ph","authors_text":"M. Lyon, S. D. Bergeson","submitted_at":"2016-01-27T16:40:18Z","abstract_excerpt":"We report measurements of the ion velocity distribution in an ultracold neutral plasma derived from a dense, cold Rydberg gas in a MOT. The Rydberg atoms are excited using a resonant two-step excitation pathway with lasers of 4 ns duration. The plasma forms spontaneously and rapidly. The rms width of the ion velocity distribution is determined by measuring laser-induced fluorescence (LIF) of the ions. The measured excitation efficiency is compared with a Monte-Carlo wavefunction calculation, and significant differences are observed. We discuss the conditions for blockaded Rydberg excitation an"},"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":"1601.07439","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2016-01-27T16:40:18Z","cross_cats_sorted":["physics.plasm-ph"],"title_canon_sha256":"b8a5754bda80aee47fe6a48f798e96df40bdb4e3104002f2a9055327b582b13a","abstract_canon_sha256":"ada59f955dc123fc13878f187a646ed52b1ef0961c46148aeca5233ba7225bfd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:45.888333Z","signature_b64":"5mONQ1faphAPDfFkhwJLSlZKGT3JKlAddB5yo5E+LSKEwx2j9SMEh0WUv9LRaDt9uYJP1TIszFVrCCOv6rkzDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1ce4691bf6a534321b647d906276bc0b58af0f40e0a66fdbc479975ff3021f48","last_reissued_at":"2026-05-18T01:21:45.887635Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:45.887635Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurements of the ion velocity distribution in an ultracold neutral plasma derived from a cold, dense Rydberg gas","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.plasm-ph"],"primary_cat":"physics.atom-ph","authors_text":"M. Lyon, S. D. Bergeson","submitted_at":"2016-01-27T16:40:18Z","abstract_excerpt":"We report measurements of the ion velocity distribution in an ultracold neutral plasma derived from a dense, cold Rydberg gas in a MOT. The Rydberg atoms are excited using a resonant two-step excitation pathway with lasers of 4 ns duration. The plasma forms spontaneously and rapidly. The rms width of the ion velocity distribution is determined by measuring laser-induced fluorescence (LIF) of the ions. The measured excitation efficiency is compared with a Monte-Carlo wavefunction calculation, and significant differences are observed. We discuss the conditions for blockaded Rydberg excitation an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.07439","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1601.07439","created_at":"2026-05-18T01:21:45.887748+00:00"},{"alias_kind":"arxiv_version","alias_value":"1601.07439v1","created_at":"2026-05-18T01:21:45.887748+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.07439","created_at":"2026-05-18T01:21:45.887748+00:00"},{"alias_kind":"pith_short_12","alias_value":"DTSGSG7WUU2D","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_16","alias_value":"DTSGSG7WUU2DEG3E","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_8","alias_value":"DTSGSG7W","created_at":"2026-05-18T12:30:12.583610+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/DTSGSG7WUU2DEG3EPWIGE5V4BN","json":"https://pith.science/pith/DTSGSG7WUU2DEG3EPWIGE5V4BN.json","graph_json":"https://pith.science/api/pith-number/DTSGSG7WUU2DEG3EPWIGE5V4BN/graph.json","events_json":"https://pith.science/api/pith-number/DTSGSG7WUU2DEG3EPWIGE5V4BN/events.json","paper":"https://pith.science/paper/DTSGSG7W"},"agent_actions":{"view_html":"https://pith.science/pith/DTSGSG7WUU2DEG3EPWIGE5V4BN","download_json":"https://pith.science/pith/DTSGSG7WUU2DEG3EPWIGE5V4BN.json","view_paper":"https://pith.science/paper/DTSGSG7W","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1601.07439&json=true","fetch_graph":"https://pith.science/api/pith-number/DTSGSG7WUU2DEG3EPWIGE5V4BN/graph.json","fetch_events":"https://pith.science/api/pith-number/DTSGSG7WUU2DEG3EPWIGE5V4BN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DTSGSG7WUU2DEG3EPWIGE5V4BN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DTSGSG7WUU2DEG3EPWIGE5V4BN/action/storage_attestation","attest_author":"https://pith.science/pith/DTSGSG7WUU2DEG3EPWIGE5V4BN/action/author_attestation","sign_citation":"https://pith.science/pith/DTSGSG7WUU2DEG3EPWIGE5V4BN/action/citation_signature","submit_replication":"https://pith.science/pith/DTSGSG7WUU2DEG3EPWIGE5V4BN/action/replication_record"}},"created_at":"2026-05-18T01:21:45.887748+00:00","updated_at":"2026-05-18T01:21:45.887748+00:00"}