{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:KHJ3MLO7FS7XZ7ES7LERGKQLTF","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":"a230901acd138649595099bfdb3db38cac918d7d253b7b5a1240dcb6f75ad35b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-05-21T14:18:59Z","title_canon_sha256":"fe89a5b7b02bb5b2639ee1ba4ea305660c95ece607c9f490be0f7a6f604674ba"},"schema_version":"1.0","source":{"id":"1705.07453","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.07453","created_at":"2026-05-18T00:38:26Z"},{"alias_kind":"arxiv_version","alias_value":"1705.07453v3","created_at":"2026-05-18T00:38:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.07453","created_at":"2026-05-18T00:38:26Z"},{"alias_kind":"pith_short_12","alias_value":"KHJ3MLO7FS7X","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"KHJ3MLO7FS7XZ7ES","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"KHJ3MLO7","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:e3fdf53a0f181f7112a61579212256f53eebef44f6eff9f12a9989e00d2ac071","target":"graph","created_at":"2026-05-18T00:38:26Z","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 analyze magnetometry using an optically levitated nanodiamond. We consider a configuration where a magnetic field gradient couples the mechanical oscillation of the diamond with its spin degree of freedom provided by a Nitrogen vacancy center. First, we investigate measurement of the position spectrum of the mechanical oscillator. We find that conditions of ultrahigh vacuum and feedback cooling allow a magnetic field gradient sensitivity of 1 $\\mu$Tm$^{-1}$/$\\sqrt{\\mbox{Hz}}$. At high pressure and room temperature, this sensitivity degrades and can attain a value of the order of 100 $m$Tm$^","authors_text":"M. Bhattacharya, Pardeep Kumar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-05-21T14:18:59Z","title":"Magnetometry via spin-mechanical coupling in levitated optomechanics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.07453","kind":"arxiv","version":3},"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:ebfafce048b26e970f03456386b2bf298726a999993d7b8628a6ae7ef0bf80ff","target":"record","created_at":"2026-05-18T00:38:26Z","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":"a230901acd138649595099bfdb3db38cac918d7d253b7b5a1240dcb6f75ad35b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-05-21T14:18:59Z","title_canon_sha256":"fe89a5b7b02bb5b2639ee1ba4ea305660c95ece607c9f490be0f7a6f604674ba"},"schema_version":"1.0","source":{"id":"1705.07453","kind":"arxiv","version":3}},"canonical_sha256":"51d3b62ddf2cbf7cfc92fac9132a0b9943b51c0de4b0a748b50031696b01e617","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"51d3b62ddf2cbf7cfc92fac9132a0b9943b51c0de4b0a748b50031696b01e617","first_computed_at":"2026-05-18T00:38:26.145109Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:38:26.145109Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jLhCk+3yBdo88wyCnOayAL+OXyYUETlaikZAqD8PsmyB9LlLo6TIMGZCc7O8lgz4TkMZpSlxyZBJMQdJ1+bjBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:38:26.145963Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.07453","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ebfafce048b26e970f03456386b2bf298726a999993d7b8628a6ae7ef0bf80ff","sha256:e3fdf53a0f181f7112a61579212256f53eebef44f6eff9f12a9989e00d2ac071"],"state_sha256":"019026767868c7d5527f6f9f8a38ef40f7edecbdfff51494e6f0d69319fdc5ae"}