{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:RHCVWOIDU2W5J3L654E6WLHYBL","short_pith_number":"pith:RHCVWOID","schema_version":"1.0","canonical_sha256":"89c55b3903a6add4ed7eef09eb2cf80ae493b7731fa2ba2db40f04edbdabad0c","source":{"kind":"arxiv","id":"1808.03310","version":2},"attestation_state":"computed","paper":{"title":"Magnetic field stabilization system for atomic physics experiments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det","quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"B. Merkel, C. J. Ballance, D. M. Lucas, J. E. Tarlton, K. Thirumalai, T. P. Harty, V. M. Sch\\\"afer","submitted_at":"2018-08-09T19:20:37Z","abstract_excerpt":"Atomic physics experiments commonly use millitesla-scale magnetic fields to provide a quantization axis. As atomic transition frequencies depend on the amplitude of this field, many experiments require a stable absolute field. Most setups use electromagnets, which require a power supply stability not usually met by commercially available units. We demonstrate stabilization of a field of 14.6 mT to 4.3 nT rms noise (0.29 ppm), compared to noise of $\\gtrsim$ 100 nT without any stabilization. The rms noise is measured using a field-dependent hyperfine transition in a single $^{43}$Ca$^+$ ion held"},"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":"1808.03310","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-08-09T19:20:37Z","cross_cats_sorted":["physics.ins-det","quant-ph"],"title_canon_sha256":"7b4eab01568638ec119031db7ab06dac599f3cc4e90c9c28facf1d50c40fca28","abstract_canon_sha256":"cc7a9d4ea98c43e41fdd7db91a4e70503a64f81adb1d0a4cfe9930a02a46776c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:11.481412Z","signature_b64":"ZA8z/ujB+XZ2sxaihJhEYRw931+Qa4F6EKPi2q5hmQKh+v0J4cCitwNIUKWvWaozlYZhAnhN5hoMw2DCOV7ZCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"89c55b3903a6add4ed7eef09eb2cf80ae493b7731fa2ba2db40f04edbdabad0c","last_reissued_at":"2026-05-17T23:48:11.480661Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:11.480661Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Magnetic field stabilization system for atomic physics experiments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det","quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"B. Merkel, C. J. Ballance, D. M. Lucas, J. E. Tarlton, K. Thirumalai, T. P. Harty, V. M. Sch\\\"afer","submitted_at":"2018-08-09T19:20:37Z","abstract_excerpt":"Atomic physics experiments commonly use millitesla-scale magnetic fields to provide a quantization axis. As atomic transition frequencies depend on the amplitude of this field, many experiments require a stable absolute field. Most setups use electromagnets, which require a power supply stability not usually met by commercially available units. We demonstrate stabilization of a field of 14.6 mT to 4.3 nT rms noise (0.29 ppm), compared to noise of $\\gtrsim$ 100 nT without any stabilization. The rms noise is measured using a field-dependent hyperfine transition in a single $^{43}$Ca$^+$ ion held"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.03310","kind":"arxiv","version":2},"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":"1808.03310","created_at":"2026-05-17T23:48:11.480792+00:00"},{"alias_kind":"arxiv_version","alias_value":"1808.03310v2","created_at":"2026-05-17T23:48:11.480792+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.03310","created_at":"2026-05-17T23:48:11.480792+00:00"},{"alias_kind":"pith_short_12","alias_value":"RHCVWOIDU2W5","created_at":"2026-05-18T12:32:50.500415+00:00"},{"alias_kind":"pith_short_16","alias_value":"RHCVWOIDU2W5J3L6","created_at":"2026-05-18T12:32:50.500415+00:00"},{"alias_kind":"pith_short_8","alias_value":"RHCVWOID","created_at":"2026-05-18T12:32:50.500415+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/RHCVWOIDU2W5J3L654E6WLHYBL","json":"https://pith.science/pith/RHCVWOIDU2W5J3L654E6WLHYBL.json","graph_json":"https://pith.science/api/pith-number/RHCVWOIDU2W5J3L654E6WLHYBL/graph.json","events_json":"https://pith.science/api/pith-number/RHCVWOIDU2W5J3L654E6WLHYBL/events.json","paper":"https://pith.science/paper/RHCVWOID"},"agent_actions":{"view_html":"https://pith.science/pith/RHCVWOIDU2W5J3L654E6WLHYBL","download_json":"https://pith.science/pith/RHCVWOIDU2W5J3L654E6WLHYBL.json","view_paper":"https://pith.science/paper/RHCVWOID","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1808.03310&json=true","fetch_graph":"https://pith.science/api/pith-number/RHCVWOIDU2W5J3L654E6WLHYBL/graph.json","fetch_events":"https://pith.science/api/pith-number/RHCVWOIDU2W5J3L654E6WLHYBL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RHCVWOIDU2W5J3L654E6WLHYBL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RHCVWOIDU2W5J3L654E6WLHYBL/action/storage_attestation","attest_author":"https://pith.science/pith/RHCVWOIDU2W5J3L654E6WLHYBL/action/author_attestation","sign_citation":"https://pith.science/pith/RHCVWOIDU2W5J3L654E6WLHYBL/action/citation_signature","submit_replication":"https://pith.science/pith/RHCVWOIDU2W5J3L654E6WLHYBL/action/replication_record"}},"created_at":"2026-05-17T23:48:11.480792+00:00","updated_at":"2026-05-17T23:48:11.480792+00:00"}