{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:6PL2L6UF4OUZJQ3WAIJP7BD5PW","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":"323ce31e5d4e050678edcbef8ed8c35d8e39df0c49484bf88fb648471dc97e6e","cross_cats_sorted":[],"license":"","primary_cat":"physics.atom-ph","submitted_at":"2007-06-06T10:32:09Z","title_canon_sha256":"dd639aca8c734fab0903a15af9018cb1506c6403c4da9f89f28068bd638b48b9"},"schema_version":"1.0","source":{"id":"0706.0796","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.0796","created_at":"2026-05-18T04:31:30Z"},{"alias_kind":"arxiv_version","alias_value":"0706.0796v2","created_at":"2026-05-18T04:31:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.0796","created_at":"2026-05-18T04:31:30Z"},{"alias_kind":"pith_short_12","alias_value":"6PL2L6UF4OUZ","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"6PL2L6UF4OUZJQ3W","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"6PL2L6UF","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:159a12ce13a8cf0ac8c7dd5c2a6927ab6ffeaa3bed99efbc9e968b250661edde","target":"graph","created_at":"2026-05-18T04:31:30Z","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 demonstrate an efficient scheme for continuous trap loading based upon spatially selective optical pumping. We discuss the case of $^{1}$S$_{0}$ calcium atoms in an optical dipole trap (ODT), however, similar strategies should be applicable to a wide range of atomic species. Our starting point is a reservoir of moderately cold ($\\approx 300 \\mu$K) metastable $^{3}$P$_{2}$-atoms prepared by means of a magneto-optic trap (triplet-MOT). A focused 532 nm laser beam produces a strongly elongated optical potential for $^{1}$S$_{0}$-atoms with up to 350 $\\mu$K well depth. A weak focused laser beam","authors_text":"A. Hemmerich, C. Y. Yang, D. Hansen, O. Appel, P. Halder","cross_cats":[],"headline":"","license":"","primary_cat":"physics.atom-ph","submitted_at":"2007-06-06T10:32:09Z","title":"Continuous loading of $^{1}$S$_{0}$ calcium atoms into an optical dipole trap"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.0796","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:f145d5d04bfca93ccf120f93077ad51609f7941435c5598b4e9e3d122e4233d6","target":"record","created_at":"2026-05-18T04:31:30Z","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":"323ce31e5d4e050678edcbef8ed8c35d8e39df0c49484bf88fb648471dc97e6e","cross_cats_sorted":[],"license":"","primary_cat":"physics.atom-ph","submitted_at":"2007-06-06T10:32:09Z","title_canon_sha256":"dd639aca8c734fab0903a15af9018cb1506c6403c4da9f89f28068bd638b48b9"},"schema_version":"1.0","source":{"id":"0706.0796","kind":"arxiv","version":2}},"canonical_sha256":"f3d7a5fa85e3a994c3760212ff847d7dadda87de2426ae29bdd95748d3dae2e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f3d7a5fa85e3a994c3760212ff847d7dadda87de2426ae29bdd95748d3dae2e0","first_computed_at":"2026-05-18T04:31:30.080343Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:31:30.080343Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RSB2xHO2FLEo2KIZOOjEOw/79xzLO5tIiFREe4voy+c96kl40sQtf4o0SW9FdCNobdGnPhkVPZbnwFEU9CBtDA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:31:30.080794Z","signed_message":"canonical_sha256_bytes"},"source_id":"0706.0796","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f145d5d04bfca93ccf120f93077ad51609f7941435c5598b4e9e3d122e4233d6","sha256:159a12ce13a8cf0ac8c7dd5c2a6927ab6ffeaa3bed99efbc9e968b250661edde"],"state_sha256":"5ef918aeaf6ee184dfad19086a50eca3e86ce6064188888f294a4c535f4161f3"}