{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:6FFO7VNNYO6JKBV7EZVOAPKORO","short_pith_number":"pith:6FFO7VNN","canonical_record":{"source":{"id":"1107.4447","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-07-22T08:22:31Z","cross_cats_sorted":["physics.ins-det","quant-ph"],"title_canon_sha256":"d91ed7ad778d38e2d722ce0c2afd83e7a418d0680a3d835663a40e50a7854ca4","abstract_canon_sha256":"ef0d277ea53f616f3cc979cce9571990491e068c983f1db17853540a68ce6eef"},"schema_version":"1.0"},"canonical_sha256":"f14aefd5adc3bc9506bf266ae03d4e8b9696ceb1887c17265b0e44fc39644065","source":{"kind":"arxiv","id":"1107.4447","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.4447","created_at":"2026-05-18T04:16:41Z"},{"alias_kind":"arxiv_version","alias_value":"1107.4447v1","created_at":"2026-05-18T04:16:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.4447","created_at":"2026-05-18T04:16:41Z"},{"alias_kind":"pith_short_12","alias_value":"6FFO7VNNYO6J","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"6FFO7VNNYO6JKBV7","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"6FFO7VNN","created_at":"2026-05-18T12:26:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:6FFO7VNNYO6JKBV7EZVOAPKORO","target":"record","payload":{"canonical_record":{"source":{"id":"1107.4447","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-07-22T08:22:31Z","cross_cats_sorted":["physics.ins-det","quant-ph"],"title_canon_sha256":"d91ed7ad778d38e2d722ce0c2afd83e7a418d0680a3d835663a40e50a7854ca4","abstract_canon_sha256":"ef0d277ea53f616f3cc979cce9571990491e068c983f1db17853540a68ce6eef"},"schema_version":"1.0"},"canonical_sha256":"f14aefd5adc3bc9506bf266ae03d4e8b9696ceb1887c17265b0e44fc39644065","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:16:41.812288Z","signature_b64":"gZ6u4Cyy5HRNqiM/KxBIui6GgRE5h0cWkWUnY9vCjU5Zbe4e5lY4Q59BfYokjsJo6xbvVCDtQLcM3KpiPPuHAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f14aefd5adc3bc9506bf266ae03d4e8b9696ceb1887c17265b0e44fc39644065","last_reissued_at":"2026-05-18T04:16:41.811631Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:16:41.811631Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.4447","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:16:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pNloTRmDsRkuM3W2Emk6hyulGv32w7bD7vF4xmGjbNfiu7XFXy1oOXD3VE/KHfbfWyl4sTCQ/I1DEw9x75SsCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T00:31:49.272607Z"},"content_sha256":"4ed67f35a6f086b2ebf2fd94e248a07bc8d49dff1c87a35cb69a58d95f37cff7","schema_version":"1.0","event_id":"sha256:4ed67f35a6f086b2ebf2fd94e248a07bc8d49dff1c87a35cb69a58d95f37cff7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:6FFO7VNNYO6JKBV7EZVOAPKORO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Negative Backaction Noise in Interferometric Detection of a Microlever","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det","quant-ph"],"primary_cat":"physics.optics","authors_text":"A. Mosset, H. Sellier, J. Chevrier, J. Laurent, O. Arcizet, S. Huant","submitted_at":"2011-07-22T08:22:31Z","abstract_excerpt":"Interferometric detection of mirror displacements is intrinsically limited by laser shot noise. In practice, however, it is often limited by thermal noise. Here we report on an experiment performed at the liquid helium temperature to overcome the thermal noise limitation and investigate the effect of classical laser noise on a microlever that forms a Fabry-Perot cavity with an optical fiber. The spectral noise densities show a region of negative contribution of the backaction noise close to the resonance frequency. We interpret this noise reduction as a coherent coupling of the microlever to t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.4447","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:16:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RGHFLEgqzRI/MVdOaRqMwEq+HyXGq01/ELi55pMgm/amTbVTqP8Wy4V7afySj2VZ4FUU87E0Z6NaaralcGs5Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T00:31:49.272993Z"},"content_sha256":"45b053da99579584b243b46aa18bdb43ca246a702fcadf466e67bdc99f1e1014","schema_version":"1.0","event_id":"sha256:45b053da99579584b243b46aa18bdb43ca246a702fcadf466e67bdc99f1e1014"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6FFO7VNNYO6JKBV7EZVOAPKORO/bundle.json","state_url":"https://pith.science/pith/6FFO7VNNYO6JKBV7EZVOAPKORO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6FFO7VNNYO6JKBV7EZVOAPKORO/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-31T00:31:49Z","links":{"resolver":"https://pith.science/pith/6FFO7VNNYO6JKBV7EZVOAPKORO","bundle":"https://pith.science/pith/6FFO7VNNYO6JKBV7EZVOAPKORO/bundle.json","state":"https://pith.science/pith/6FFO7VNNYO6JKBV7EZVOAPKORO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6FFO7VNNYO6JKBV7EZVOAPKORO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:6FFO7VNNYO6JKBV7EZVOAPKORO","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":"ef0d277ea53f616f3cc979cce9571990491e068c983f1db17853540a68ce6eef","cross_cats_sorted":["physics.ins-det","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-07-22T08:22:31Z","title_canon_sha256":"d91ed7ad778d38e2d722ce0c2afd83e7a418d0680a3d835663a40e50a7854ca4"},"schema_version":"1.0","source":{"id":"1107.4447","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.4447","created_at":"2026-05-18T04:16:41Z"},{"alias_kind":"arxiv_version","alias_value":"1107.4447v1","created_at":"2026-05-18T04:16:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.4447","created_at":"2026-05-18T04:16:41Z"},{"alias_kind":"pith_short_12","alias_value":"6FFO7VNNYO6J","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"6FFO7VNNYO6JKBV7","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"6FFO7VNN","created_at":"2026-05-18T12:26:22Z"}],"graph_snapshots":[{"event_id":"sha256:45b053da99579584b243b46aa18bdb43ca246a702fcadf466e67bdc99f1e1014","target":"graph","created_at":"2026-05-18T04:16:41Z","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":"Interferometric detection of mirror displacements is intrinsically limited by laser shot noise. In practice, however, it is often limited by thermal noise. Here we report on an experiment performed at the liquid helium temperature to overcome the thermal noise limitation and investigate the effect of classical laser noise on a microlever that forms a Fabry-Perot cavity with an optical fiber. The spectral noise densities show a region of negative contribution of the backaction noise close to the resonance frequency. We interpret this noise reduction as a coherent coupling of the microlever to t","authors_text":"A. Mosset, H. Sellier, J. Chevrier, J. Laurent, O. Arcizet, S. Huant","cross_cats":["physics.ins-det","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-07-22T08:22:31Z","title":"Negative Backaction Noise in Interferometric Detection of a Microlever"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.4447","kind":"arxiv","version":1},"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":"sha256:4ed67f35a6f086b2ebf2fd94e248a07bc8d49dff1c87a35cb69a58d95f37cff7","target":"record","created_at":"2026-05-18T04:16:41Z","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":"ef0d277ea53f616f3cc979cce9571990491e068c983f1db17853540a68ce6eef","cross_cats_sorted":["physics.ins-det","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-07-22T08:22:31Z","title_canon_sha256":"d91ed7ad778d38e2d722ce0c2afd83e7a418d0680a3d835663a40e50a7854ca4"},"schema_version":"1.0","source":{"id":"1107.4447","kind":"arxiv","version":1}},"canonical_sha256":"f14aefd5adc3bc9506bf266ae03d4e8b9696ceb1887c17265b0e44fc39644065","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f14aefd5adc3bc9506bf266ae03d4e8b9696ceb1887c17265b0e44fc39644065","first_computed_at":"2026-05-18T04:16:41.811631Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:16:41.811631Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gZ6u4Cyy5HRNqiM/KxBIui6GgRE5h0cWkWUnY9vCjU5Zbe4e5lY4Q59BfYokjsJo6xbvVCDtQLcM3KpiPPuHAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:16:41.812288Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.4447","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4ed67f35a6f086b2ebf2fd94e248a07bc8d49dff1c87a35cb69a58d95f37cff7","sha256:45b053da99579584b243b46aa18bdb43ca246a702fcadf466e67bdc99f1e1014"],"state_sha256":"e312810d068fae3a66b2b399a39bdfd3e41dd73ce8f328d813039f44858cfddb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LFTZv2as0qlXgW5vthLI90ADnkku1c+kkYFsJXZsxQVUbRpX7vg10HlEeQUSWiWqJa0bAnrasq0igfaaEWUaBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T00:31:49.275547Z","bundle_sha256":"e8244a0973b622d737292ae0244fe39ad1c579092aa59f26bdb9a084edc557f4"}}