{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2000:4Q2VNN2APPSKECEREAMY67TNPT","short_pith_number":"pith:4Q2VNN2A","schema_version":"1.0","canonical_sha256":"e43556b7407be4a2089120198f7e6d7cf31abf4ec41b7d276cfdf2a652f5d68c","source":{"kind":"arxiv","id":"quant-ph/0009105","version":1},"attestation_state":"computed","paper":{"title":"Experiments towards quantum information with trapped Calcium ions","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. B. Mundt, C. Roos, D. Leibfried, F. Schmidt-Kaler, G. Reymond, H. Rohde, J. Eschner, M. Lederbauer, P. Barton, R. Blatt, S. Gulde","submitted_at":"2000-09-26T13:53:49Z","abstract_excerpt":"Ground state cooling and coherent manipulation of ions in an rf-(Paul) trap is the prerequisite for quantum information experiments with trapped ions. With resolved sideband cooling on the optical S1/2 - D5/2 quadrupole transition we have cooled one and two 40Ca+ ions to the ground state of vibration with up to 99.9% probability. With a novel cooling scheme utilizing electromagnetically induced transparency on the S1/2 - P1/2 manifold we have achieved simultaneous ground state cooling of two motional sidebands 1.7 MHz apart. Starting from the motional ground state we have demonstrated coherent"},"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":"quant-ph/0009105","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2000-09-26T13:53:49Z","cross_cats_sorted":[],"title_canon_sha256":"93bb84435e2e5db091107bb1d51ce2cfa7cc55a9694669e6e10cd87324ca0904","abstract_canon_sha256":"bf877f424defdff039b18d5dbba79e2c439e02b3f3fefe64a482e5280e3986c5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:23:02.551448Z","signature_b64":"3jniAuxlIbZFacCnrQ82CaY4BJkQSt7Bkk4RSoemAjT66wCiO6kfgOTW0s7P3545w0v2lVF0d5J9FvnSF0FhAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e43556b7407be4a2089120198f7e6d7cf31abf4ec41b7d276cfdf2a652f5d68c","last_reissued_at":"2026-07-04T16:23:02.551069Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:23:02.551069Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Experiments towards quantum information with trapped Calcium ions","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. B. Mundt, C. Roos, D. Leibfried, F. Schmidt-Kaler, G. Reymond, H. Rohde, J. Eschner, M. Lederbauer, P. Barton, R. Blatt, S. Gulde","submitted_at":"2000-09-26T13:53:49Z","abstract_excerpt":"Ground state cooling and coherent manipulation of ions in an rf-(Paul) trap is the prerequisite for quantum information experiments with trapped ions. With resolved sideband cooling on the optical S1/2 - D5/2 quadrupole transition we have cooled one and two 40Ca+ ions to the ground state of vibration with up to 99.9% probability. With a novel cooling scheme utilizing electromagnetically induced transparency on the S1/2 - P1/2 manifold we have achieved simultaneous ground state cooling of two motional sidebands 1.7 MHz apart. Starting from the motional ground state we have demonstrated coherent"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0009105","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/quant-ph/0009105/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"quant-ph/0009105","created_at":"2026-07-04T16:23:02.551124+00:00"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0009105v1","created_at":"2026-07-04T16:23:02.551124+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0009105","created_at":"2026-07-04T16:23:02.551124+00:00"},{"alias_kind":"pith_short_12","alias_value":"4Q2VNN2APPSK","created_at":"2026-07-04T16:23:02.551124+00:00"},{"alias_kind":"pith_short_16","alias_value":"4Q2VNN2APPSKECER","created_at":"2026-07-04T16:23:02.551124+00:00"},{"alias_kind":"pith_short_8","alias_value":"4Q2VNN2A","created_at":"2026-07-04T16:23:02.551124+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/4Q2VNN2APPSKECEREAMY67TNPT","json":"https://pith.science/pith/4Q2VNN2APPSKECEREAMY67TNPT.json","graph_json":"https://pith.science/api/pith-number/4Q2VNN2APPSKECEREAMY67TNPT/graph.json","events_json":"https://pith.science/api/pith-number/4Q2VNN2APPSKECEREAMY67TNPT/events.json","paper":"https://pith.science/paper/4Q2VNN2A"},"agent_actions":{"view_html":"https://pith.science/pith/4Q2VNN2APPSKECEREAMY67TNPT","download_json":"https://pith.science/pith/4Q2VNN2APPSKECEREAMY67TNPT.json","view_paper":"https://pith.science/paper/4Q2VNN2A","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=quant-ph/0009105&json=true","fetch_graph":"https://pith.science/api/pith-number/4Q2VNN2APPSKECEREAMY67TNPT/graph.json","fetch_events":"https://pith.science/api/pith-number/4Q2VNN2APPSKECEREAMY67TNPT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4Q2VNN2APPSKECEREAMY67TNPT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4Q2VNN2APPSKECEREAMY67TNPT/action/storage_attestation","attest_author":"https://pith.science/pith/4Q2VNN2APPSKECEREAMY67TNPT/action/author_attestation","sign_citation":"https://pith.science/pith/4Q2VNN2APPSKECEREAMY67TNPT/action/citation_signature","submit_replication":"https://pith.science/pith/4Q2VNN2APPSKECEREAMY67TNPT/action/replication_record"}},"created_at":"2026-07-04T16:23:02.551124+00:00","updated_at":"2026-07-04T16:23:02.551124+00:00"}