{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:BWSSUYEZLTSASBTGSUIMCKUCYY","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":"0801bebfecbdc680a886defd5ee8ec114999e3f1032ff46243dd47a440c02bdd","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-11-10T07:47:22Z","title_canon_sha256":"7911ba1faa909935099f9d5a952558ba3d2ba14b215df0f1cea8f859ebf29cef"},"schema_version":"1.0","source":{"id":"1611.03209","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.03209","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"arxiv_version","alias_value":"1611.03209v1","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.03209","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"pith_short_12","alias_value":"BWSSUYEZLTSA","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"BWSSUYEZLTSASBTG","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"BWSSUYEZ","created_at":"2026-05-18T12:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:25243fdbca1faba22fd21f7af777f1568b7b060013a4c9bbb4b265ccc65ea859","target":"graph","created_at":"2026-05-18T00:16:56Z","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":"A quantum state is fully characterized by its density matrix or equivalently by its quasiprobabilities in phase space. A scheme to identify the quasiprobabilities of a quantum state is an important tool in the recent development of quantum technologies. Based on our highly efficient vacuum measurement scheme, we measure the quasiprobability $Q$-function of the vibrational motion for a \\Yb ion {\\it resonantly} interacting with its internal energy states. This interaction model is known as the Jaynes-Cummings model which is one of the fundamental models in quantum electrodynamics. We apply the c","authors_text":"Dingshun Lv, Jing -Ning Zhang, Junhua Zhang, Kihwan Kim, Mark Um, M. S. Kim, Shuoming An","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-11-10T07:47:22Z","title":"Vacuum Measurements and Quantum State Reconstruction of Phonons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.03209","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":"sha256:0e21630c8c2a083cab8aace463c7617b133dccf7aa3f2b7476eae2a29a6bf2ee","target":"record","created_at":"2026-05-18T00:16:56Z","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":"0801bebfecbdc680a886defd5ee8ec114999e3f1032ff46243dd47a440c02bdd","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-11-10T07:47:22Z","title_canon_sha256":"7911ba1faa909935099f9d5a952558ba3d2ba14b215df0f1cea8f859ebf29cef"},"schema_version":"1.0","source":{"id":"1611.03209","kind":"arxiv","version":1}},"canonical_sha256":"0da52a60995ce40906669510c12a82c6359131338c4a0be106a834214e5a2eef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0da52a60995ce40906669510c12a82c6359131338c4a0be106a834214e5a2eef","first_computed_at":"2026-05-18T00:16:56.697252Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:16:56.697252Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mq3Hbh3fhfoCccVTfqkjT7oLngYBJ+dB355m1nl0SLVQnSp57xvDQRXZSbBb0awSBYKJNMrKGCbPACjDAiaaDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:16:56.697848Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.03209","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e21630c8c2a083cab8aace463c7617b133dccf7aa3f2b7476eae2a29a6bf2ee","sha256:25243fdbca1faba22fd21f7af777f1568b7b060013a4c9bbb4b265ccc65ea859"],"state_sha256":"f83b1a26c6c3399fa400cff292ad5e29d1e2eb9027989fb90b7a68d381c2cc37"}