{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZNBTHCA4BRGL3ZSXSRIXCZ4ZUG","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":"b6d046e686811f1e66464589cdffd09d38b647cc92e41411d21f7f206d4f47d9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-01-24T04:26:30Z","title_canon_sha256":"f2dec53b33fd80018de705fb6a4c51fefc2351f60fb566ed43a7320bd69f895f"},"schema_version":"1.0","source":{"id":"1901.08228","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.08228","created_at":"2026-07-05T00:33:10Z"},{"alias_kind":"arxiv_version","alias_value":"1901.08228v1","created_at":"2026-07-05T00:33:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.08228","created_at":"2026-07-05T00:33:10Z"},{"alias_kind":"pith_short_12","alias_value":"ZNBTHCA4BRGL","created_at":"2026-07-05T00:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"ZNBTHCA4BRGL3ZSX","created_at":"2026-07-05T00:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"ZNBTHCA4","created_at":"2026-07-05T00:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:d23585eca830fb7a54ab80443fe0929d86ce9281db526825dc3bc7ab31bef11e","target":"graph","created_at":"2026-07-05T00:33:10Z","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/1901.08228/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum state transfer between microwave and optical frequencies is essential for connecting superconducting quantum circuits to coherent optical systems and extending microwave quantum networks over long distances. To build such a hybrid `quantum Internet,' an important experiment in the quantum regime is to entangle microwave and optical modes. Based on the model of a generic cavity electro-optomechanical system, we present a heralded scheme to generate entangled microwave--optical photon pairs, which can bypass the efficiency threshold for quantum channel capacity in direct transfer protoco","authors_text":"Changchun Zhong, Changling Zou, Hong X. Tang, Liang Jiang, Mengzhen Zhang, Michel H. Devoret, Mingrui Xu, Shyam Shankar, Wei Fu, Xu Han, Zhixin Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-01-24T04:26:30Z","title":"Heralded Generation and Detection of Entangled Microwave--Optical Photon Pairs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.08228","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":"sha256:5995b237c71dedc079aef93309627379e0394c60cef0e59de1ef450cc5c06834","target":"record","created_at":"2026-07-05T00:33:10Z","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":"b6d046e686811f1e66464589cdffd09d38b647cc92e41411d21f7f206d4f47d9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-01-24T04:26:30Z","title_canon_sha256":"f2dec53b33fd80018de705fb6a4c51fefc2351f60fb566ed43a7320bd69f895f"},"schema_version":"1.0","source":{"id":"1901.08228","kind":"arxiv","version":1}},"canonical_sha256":"cb4333881c0c4cbde6579451716799a1810c00c9ce0dea530b35cd925741b210","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cb4333881c0c4cbde6579451716799a1810c00c9ce0dea530b35cd925741b210","first_computed_at":"2026-07-05T00:33:10.611288Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:33:10.611288Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MSQSMFaOSynuRL4je60x+D9pqcwMknwBlDl1rh6VZgQ5vU7YxT/uZiqHVpl4Au26wcmhhm3kdsyMT9m38Ct9Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T00:33:10.611801Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.08228","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5995b237c71dedc079aef93309627379e0394c60cef0e59de1ef450cc5c06834","sha256:d23585eca830fb7a54ab80443fe0929d86ce9281db526825dc3bc7ab31bef11e"],"state_sha256":"16c99545dbe3dbcfc5e4313dec51939f292bb749b6fa1c6cb42e3b5af61e916b"}