{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:BGHHRZHG7CXWWB377Z6FHGJOCK","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":"9dbf973489afaedc19eb54a501969c1bc68b6ece024dfbb847c9062a16721811","cross_cats_sorted":["cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-07-27T07:11:32Z","title_canon_sha256":"238a1236088a552b728306207a54ba0a3b89de8676f72d3d1bc7e90e7525abb8"},"schema_version":"1.0","source":{"id":"2107.12635","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.12635","created_at":"2026-07-05T03:53:01Z"},{"alias_kind":"arxiv_version","alias_value":"2107.12635v1","created_at":"2026-07-05T03:53:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.12635","created_at":"2026-07-05T03:53:01Z"},{"alias_kind":"pith_short_12","alias_value":"BGHHRZHG7CXW","created_at":"2026-07-05T03:53:01Z"},{"alias_kind":"pith_short_16","alias_value":"BGHHRZHG7CXWWB37","created_at":"2026-07-05T03:53:01Z"},{"alias_kind":"pith_short_8","alias_value":"BGHHRZHG","created_at":"2026-07-05T03:53:01Z"}],"graph_snapshots":[{"event_id":"sha256:a2eaf326c717b1e3aa5d6338525e806f26eb11ad3aa4a98d5208e635155eb185","target":"graph","created_at":"2026-07-05T03:53:01Z","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/2107.12635/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Non-Hermitian systems with parity-time reversal ($\\mathcal{PT}$) or anti-$\\mathcal{PT}$ symmetry have attracted a wide range of interest owing to their unique characteristics and counterintuitive phenomena. One of the most extraordinary features is the presence of an exception point (EP), across which a phase transition with spontaneously broken $\\mathcal{PT}$ symmetry takes place. We implement a Floquet Hamiltonian of a single qubit with anti-$\\mathcal{PT}$ symmetry by periodically driving a dissipative quantum system of a single trapped ion. With stroboscopic emission and quantum state tomog","authors_text":"Chenhao Zhu, Jiaqi Yi, Kaiye Shi, Liangyu Ding, Ludan Zhang, Qiuxin Zhang, Shuaining Zhang, Wei Zhang, Xiang Zhang, Yuxin Wang","cross_cats":["cond-mat.quant-gas"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-07-27T07:11:32Z","title":"Information retrieval and eigenstates coalescence in a non-Hermitian quantum system with anti-$\\mathcal{PT}$ symmetry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.12635","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":"sha256:481ccfe2bfc73595b8d55a0a5b1ec3078f033e3f57c40ac3bdfbf98dba02274b","target":"record","created_at":"2026-07-05T03:53:01Z","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":"9dbf973489afaedc19eb54a501969c1bc68b6ece024dfbb847c9062a16721811","cross_cats_sorted":["cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-07-27T07:11:32Z","title_canon_sha256":"238a1236088a552b728306207a54ba0a3b89de8676f72d3d1bc7e90e7525abb8"},"schema_version":"1.0","source":{"id":"2107.12635","kind":"arxiv","version":1}},"canonical_sha256":"098e78e4e6f8af6b077ffe7c53992e12ad6e8a9d909f9286ec38a0158847cf0a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"098e78e4e6f8af6b077ffe7c53992e12ad6e8a9d909f9286ec38a0158847cf0a","first_computed_at":"2026-07-05T03:53:01.556567Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:53:01.556567Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q8qoAYp2zrASq4UpELYUp8wLcmvcMIPqwMLy6NqfIeSN9EDi/Z+FCUQRdvwvaPsN5iHHZs+36GgHp+YevB7SCw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:53:01.557229Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.12635","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:481ccfe2bfc73595b8d55a0a5b1ec3078f033e3f57c40ac3bdfbf98dba02274b","sha256:a2eaf326c717b1e3aa5d6338525e806f26eb11ad3aa4a98d5208e635155eb185"],"state_sha256":"202a0f929bc9282a6d51caecd90bc90141a3dca64ca503d1e84319ed02e0c01a"}