{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:6KY4I7A5DWQQZW5XADBPU5FD4B","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":"3964cfcc8f372d31a754dc89b10bd2a6f6d4cb98de1f67cdda8613216681f8cc","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-12-12T09:26:00Z","title_canon_sha256":"43bd33ea06b5c5a7c6bce2579b9245b0381b83b443bafc56c1a0571a44a0a192"},"schema_version":"1.0","source":{"id":"2112.06190","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.06190","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"arxiv_version","alias_value":"2112.06190v1","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.06190","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"pith_short_12","alias_value":"6KY4I7A5DWQQ","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"6KY4I7A5DWQQZW5X","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"6KY4I7A5","created_at":"2026-07-05T04:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:51a1788afcabddb2f2b50c995c77099b0ed857e298c71cb8dfb74ee63cbf24a2","target":"graph","created_at":"2026-07-05T04:33:27Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2112.06190/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Detection of weak electromagnetic waves and hypothetical particles aided by quantum amplification is important for fundamental physics and applications. However, demonstrations of quantum amplification are still limited; in particular, the physics of quantum amplification is not fully explored in periodically driven (Floquet) systems, which are generally defined by time-periodic Hamiltonians and enable observation of many exotic quantum phenomena such as time crystals. Here we investigate the magnetic-field signal amplification by periodically driven $^{129}$Xe spins and observe signal amplifi","authors_text":"Dmitry Budker, Haowen Su, Min Jiang, Xinhua Peng, Xin Wang, Yuanhong Wang, Yushu Qin","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-12-12T09:26:00Z","title":"Floquet Spin Amplification"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.06190","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":"sha256:675fee2a975812c42216915b2b1a53065a6f2d8917143aa681a3deae0ce5137f","target":"record","created_at":"2026-07-05T04:33:27Z","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":"3964cfcc8f372d31a754dc89b10bd2a6f6d4cb98de1f67cdda8613216681f8cc","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-12-12T09:26:00Z","title_canon_sha256":"43bd33ea06b5c5a7c6bce2579b9245b0381b83b443bafc56c1a0571a44a0a192"},"schema_version":"1.0","source":{"id":"2112.06190","kind":"arxiv","version":1}},"canonical_sha256":"f2b1c47c1d1da10cdbb700c2fa74a3e05a0279581fc71f1959a1781760cfc2e8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f2b1c47c1d1da10cdbb700c2fa74a3e05a0279581fc71f1959a1781760cfc2e8","first_computed_at":"2026-07-05T04:33:27.554224Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:33:27.554224Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NWGEebsbFrkp8cVl3kOE/TGMVzF9RHib6qhwkl+uigI9LpSlZau7IJ4F55UZN+izE1gCgIR2JgcjJ84k6qOIDg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:33:27.554767Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.06190","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:675fee2a975812c42216915b2b1a53065a6f2d8917143aa681a3deae0ce5137f","sha256:51a1788afcabddb2f2b50c995c77099b0ed857e298c71cb8dfb74ee63cbf24a2"],"state_sha256":"0e098fa227783025e71e259099f502861903b0318615c26f3efaea0a5ae0bd3c"}