{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:VLW47FCSSQDW2HSAAZN5CJIC3Q","short_pith_number":"pith:VLW47FCS","schema_version":"1.0","canonical_sha256":"aaedcf945294076d1e40065bd12502dc0ede46a393a221e99e62781c3b913913","source":{"kind":"arxiv","id":"1503.00401","version":1},"attestation_state":"computed","paper":{"title":"Test of Equivalence Principle at $10^{-8}$ Level by a Dual-species Double-diffraction Raman Atom Interferometer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"physics.atom-ph","authors_text":"Biao Tang, Fen Gao, Jiaqi Zhong, Jin Wang, Lin Zhou, Mingsheng Zhan, Shitong Long, Weitao Duan, Wencui Peng, Xi Chen, Yuanzhong Zhang, Zongyuan Xiong","submitted_at":"2015-03-02T03:18:29Z","abstract_excerpt":"We report an improved test of the weak equivalence principle by using a simultaneous $^{85}$Rb-$^{87}$Rb dual-species atom interferometer. We propose and implement a four-wave double-diffraction Raman transition scheme for the interferometer, and demonstrate its ability in suppressing common-mode phase noise of Raman lasers after their frequencies and intensity ratios are optimized. The statistical uncertainty of the experimental data for E\\\"{o}tv\\\"{o}s parameter $\\eta$ is $0.8\\times10^{-8}$ at 3200 s. With various systematic errors corrected the final value is $\\eta=(2.8\\pm3.0)\\times10^{-8}$."},"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":"1503.00401","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-03-02T03:18:29Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"b168af00c895bd44f1d9c0240f43ac9a82b33d4b6e270d47d6462922c8637970","abstract_canon_sha256":"0399cd13067364b072b7466382c89da4e45c8953191465518d7a455266646156"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:37:13.716542Z","signature_b64":"yFxPz1l0/AQ06AloV9frKmVbP2t/pUZjwjzOBLdoHxdoK9Gkk+e0zZVaeCozNkaKB7AJgVr7bTAaIdBxFzXHBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aaedcf945294076d1e40065bd12502dc0ede46a393a221e99e62781c3b913913","last_reissued_at":"2026-05-18T01:37:13.715879Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:37:13.715879Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Test of Equivalence Principle at $10^{-8}$ Level by a Dual-species Double-diffraction Raman Atom Interferometer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"physics.atom-ph","authors_text":"Biao Tang, Fen Gao, Jiaqi Zhong, Jin Wang, Lin Zhou, Mingsheng Zhan, Shitong Long, Weitao Duan, Wencui Peng, Xi Chen, Yuanzhong Zhang, Zongyuan Xiong","submitted_at":"2015-03-02T03:18:29Z","abstract_excerpt":"We report an improved test of the weak equivalence principle by using a simultaneous $^{85}$Rb-$^{87}$Rb dual-species atom interferometer. We propose and implement a four-wave double-diffraction Raman transition scheme for the interferometer, and demonstrate its ability in suppressing common-mode phase noise of Raman lasers after their frequencies and intensity ratios are optimized. The statistical uncertainty of the experimental data for E\\\"{o}tv\\\"{o}s parameter $\\eta$ is $0.8\\times10^{-8}$ at 3200 s. With various systematic errors corrected the final value is $\\eta=(2.8\\pm3.0)\\times10^{-8}$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.00401","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":"1503.00401","created_at":"2026-05-18T01:37:13.715971+00:00"},{"alias_kind":"arxiv_version","alias_value":"1503.00401v1","created_at":"2026-05-18T01:37:13.715971+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.00401","created_at":"2026-05-18T01:37:13.715971+00:00"},{"alias_kind":"pith_short_12","alias_value":"VLW47FCSSQDW","created_at":"2026-05-18T12:29:44.643036+00:00"},{"alias_kind":"pith_short_16","alias_value":"VLW47FCSSQDW2HSA","created_at":"2026-05-18T12:29:44.643036+00:00"},{"alias_kind":"pith_short_8","alias_value":"VLW47FCS","created_at":"2026-05-18T12:29:44.643036+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/VLW47FCSSQDW2HSAAZN5CJIC3Q","json":"https://pith.science/pith/VLW47FCSSQDW2HSAAZN5CJIC3Q.json","graph_json":"https://pith.science/api/pith-number/VLW47FCSSQDW2HSAAZN5CJIC3Q/graph.json","events_json":"https://pith.science/api/pith-number/VLW47FCSSQDW2HSAAZN5CJIC3Q/events.json","paper":"https://pith.science/paper/VLW47FCS"},"agent_actions":{"view_html":"https://pith.science/pith/VLW47FCSSQDW2HSAAZN5CJIC3Q","download_json":"https://pith.science/pith/VLW47FCSSQDW2HSAAZN5CJIC3Q.json","view_paper":"https://pith.science/paper/VLW47FCS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1503.00401&json=true","fetch_graph":"https://pith.science/api/pith-number/VLW47FCSSQDW2HSAAZN5CJIC3Q/graph.json","fetch_events":"https://pith.science/api/pith-number/VLW47FCSSQDW2HSAAZN5CJIC3Q/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VLW47FCSSQDW2HSAAZN5CJIC3Q/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VLW47FCSSQDW2HSAAZN5CJIC3Q/action/storage_attestation","attest_author":"https://pith.science/pith/VLW47FCSSQDW2HSAAZN5CJIC3Q/action/author_attestation","sign_citation":"https://pith.science/pith/VLW47FCSSQDW2HSAAZN5CJIC3Q/action/citation_signature","submit_replication":"https://pith.science/pith/VLW47FCSSQDW2HSAAZN5CJIC3Q/action/replication_record"}},"created_at":"2026-05-18T01:37:13.715971+00:00","updated_at":"2026-05-18T01:37:13.715971+00:00"}