{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:FPF6WMACGY27BDM2WCXMIC2TLI","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":"3dc5cce61c4ff1a68d144aecb6765e2ee4e99dd02c7aea2a9e742d0f8232d2cc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-02-12T13:15:00Z","title_canon_sha256":"86211a92cb00c8bafbd1c2ff9f49267f58376d792fdc299f117ad51a7aa9dc2a"},"schema_version":"1.0","source":{"id":"1802.04024","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.04024","created_at":"2026-05-17T23:58:14Z"},{"alias_kind":"arxiv_version","alias_value":"1802.04024v3","created_at":"2026-05-17T23:58:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.04024","created_at":"2026-05-17T23:58:14Z"},{"alias_kind":"pith_short_12","alias_value":"FPF6WMACGY27","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"FPF6WMACGY27BDM2","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"FPF6WMAC","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:857e67bead70ce4f1939278acd025450d7edc586695c794df9c4de26142d99bc","target":"graph","created_at":"2026-05-17T23:58:14Z","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 propose and analyze continuous measurements of atom number and atomic currents using dispersive probing in an optical cavity. For an atom-number measurement in a closed system, we relate both the detection noise and the heating rate due to measurement back-action to Tan's contact, and identify an emergent universal quantum non-demolition (QND) regime in the good-cavity limit. We then show that such a continuous QND measurement of atom number serves as a quantum-limited current transducer in a two-terminal setup. We derive a universal bound on the precision of current measurement, which resu","authors_text":"Jean-Philippe Brantut, Masahito Ueda, Shun Uchino","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-02-12T13:15:00Z","title":"Universal Noise in Continuous Transport Measurements of Interacting Fermions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.04024","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":"sha256:2fa188964290253c747bf8af22a9f55d6e2193535f2ae249ceb88b4a65f295f8","target":"record","created_at":"2026-05-17T23:58:14Z","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":"3dc5cce61c4ff1a68d144aecb6765e2ee4e99dd02c7aea2a9e742d0f8232d2cc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-02-12T13:15:00Z","title_canon_sha256":"86211a92cb00c8bafbd1c2ff9f49267f58376d792fdc299f117ad51a7aa9dc2a"},"schema_version":"1.0","source":{"id":"1802.04024","kind":"arxiv","version":3}},"canonical_sha256":"2bcbeb30023635f08d9ab0aec40b535a0604296a0898dd0bab11ec191f6a9a49","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2bcbeb30023635f08d9ab0aec40b535a0604296a0898dd0bab11ec191f6a9a49","first_computed_at":"2026-05-17T23:58:14.633345Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:14.633345Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GXsmeMUIOatgp51OH7wzzMDa3EDjrViRZkSGz710GaZbpTpi5rz7N5alX3AAcwcLB+bhlyFxtvvTZLY+9lCFCw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:14.634074Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.04024","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2fa188964290253c747bf8af22a9f55d6e2193535f2ae249ceb88b4a65f295f8","sha256:857e67bead70ce4f1939278acd025450d7edc586695c794df9c4de26142d99bc"],"state_sha256":"faa56c4949ed1191af6f4a4618875e678fe2a56aaac32cb4b0e6a963112a3325"}