{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:2HJWD4S45G4O4KFLS5AGSJFBEO","short_pith_number":"pith:2HJWD4S4","canonical_record":{"source":{"id":"1911.10300","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-11-23T02:32:21Z","cross_cats_sorted":["physics.atom-ph","physics.optics"],"title_canon_sha256":"fd52c00f6ca6edee8f3eb5f1c16e7d475b2a081c1fa90624fc0b7a0ed237a479","abstract_canon_sha256":"ae89073084d29fdff5f8ac29e08c7132a22ea280fbd7c5666c2f721c8a80271e"},"schema_version":"1.0"},"canonical_sha256":"d1d361f25ce9b8ee28ab97406924a123aaada2805e313101785dcd4f283a1e0b","source":{"kind":"arxiv","id":"1911.10300","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1911.10300","created_at":"2026-07-05T06:02:26Z"},{"alias_kind":"arxiv_version","alias_value":"1911.10300v2","created_at":"2026-07-05T06:02:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.10300","created_at":"2026-07-05T06:02:26Z"},{"alias_kind":"pith_short_12","alias_value":"2HJWD4S45G4O","created_at":"2026-07-05T06:02:26Z"},{"alias_kind":"pith_short_16","alias_value":"2HJWD4S45G4O4KFL","created_at":"2026-07-05T06:02:26Z"},{"alias_kind":"pith_short_8","alias_value":"2HJWD4S4","created_at":"2026-07-05T06:02:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:2HJWD4S45G4O4KFLS5AGSJFBEO","target":"record","payload":{"canonical_record":{"source":{"id":"1911.10300","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-11-23T02:32:21Z","cross_cats_sorted":["physics.atom-ph","physics.optics"],"title_canon_sha256":"fd52c00f6ca6edee8f3eb5f1c16e7d475b2a081c1fa90624fc0b7a0ed237a479","abstract_canon_sha256":"ae89073084d29fdff5f8ac29e08c7132a22ea280fbd7c5666c2f721c8a80271e"},"schema_version":"1.0"},"canonical_sha256":"d1d361f25ce9b8ee28ab97406924a123aaada2805e313101785dcd4f283a1e0b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:02:26.231898Z","signature_b64":"/V4DDsi9TwdEA2IOIrFfW3YpVuUNWb+xEzLEUgF1Lmq1Wwo7qxxBaBbHaibTURJRgKOXMxXzYIZVpm5S1I1QCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1d361f25ce9b8ee28ab97406924a123aaada2805e313101785dcd4f283a1e0b","last_reissued_at":"2026-07-05T06:02:26.231497Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:02:26.231497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1911.10300","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:02:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JP2DhRb4yvTL3C0MMCh6C2zuJwXXvvYWt92zE7GF3brkHQfMZy+6sL7s/WzjkmbwFBcZgDVISYqQbZd9ILmODQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:24:43.585620Z"},"content_sha256":"78d709a4affa862ad21cc9a649cf61cf7a02aa8943514b5fcba6507366bbe441","schema_version":"1.0","event_id":"sha256:78d709a4affa862ad21cc9a649cf61cf7a02aa8943514b5fcba6507366bbe441"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:2HJWD4S45G4O4KFLS5AGSJFBEO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-reciprocal Cavity Polariton with Atoms Strongly Coupled to Optical Cavity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph","physics.optics"],"primary_cat":"quant-ph","authors_text":"Chang-Ling Zou, Gang Li, Hai He, Ming Li, Pengfei Yang, Pengfei Zhang, Tiancai Zhang, Xing Han, Yuhua Qian","submitted_at":"2019-11-23T02:32:21Z","abstract_excerpt":"Breaking the time-reversal symmetry of light is of great importance for fundamental physics and has attracted increasing interest in the study of non-reciprocal photonic devices. Here, we experimentally demonstrate a chiral cavity QED system with multiple atoms strongly coupled to a Fabry-Perot cavity. By polarizing the internal quantum state of the atoms, the time-reversal symmetry of the atom-cavity interaction is broken. The strongly coupled atom-cavity system can be described by non-reciprocal quasiparticles, i.e., the cavity polariton. When it works in the linear regime, the inherent nonr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.10300","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1911.10300/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:02:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NHY+YELhG7hxJJ+5XDhnAFzPAV27G5qKawH4q8cfxIWY1fV6kgtMAqsi31haVHgZz+mDhKDtkC+C0FAIMCwaDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:24:43.585992Z"},"content_sha256":"32bfae2aa9750fc5e2603f8e97ada15c5cc481be1b5faebb23f0c1e249f96f59","schema_version":"1.0","event_id":"sha256:32bfae2aa9750fc5e2603f8e97ada15c5cc481be1b5faebb23f0c1e249f96f59"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2HJWD4S45G4O4KFLS5AGSJFBEO/bundle.json","state_url":"https://pith.science/pith/2HJWD4S45G4O4KFLS5AGSJFBEO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2HJWD4S45G4O4KFLS5AGSJFBEO/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-07T12:24:43Z","links":{"resolver":"https://pith.science/pith/2HJWD4S45G4O4KFLS5AGSJFBEO","bundle":"https://pith.science/pith/2HJWD4S45G4O4KFLS5AGSJFBEO/bundle.json","state":"https://pith.science/pith/2HJWD4S45G4O4KFLS5AGSJFBEO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2HJWD4S45G4O4KFLS5AGSJFBEO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:2HJWD4S45G4O4KFLS5AGSJFBEO","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":"ae89073084d29fdff5f8ac29e08c7132a22ea280fbd7c5666c2f721c8a80271e","cross_cats_sorted":["physics.atom-ph","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-11-23T02:32:21Z","title_canon_sha256":"fd52c00f6ca6edee8f3eb5f1c16e7d475b2a081c1fa90624fc0b7a0ed237a479"},"schema_version":"1.0","source":{"id":"1911.10300","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1911.10300","created_at":"2026-07-05T06:02:26Z"},{"alias_kind":"arxiv_version","alias_value":"1911.10300v2","created_at":"2026-07-05T06:02:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.10300","created_at":"2026-07-05T06:02:26Z"},{"alias_kind":"pith_short_12","alias_value":"2HJWD4S45G4O","created_at":"2026-07-05T06:02:26Z"},{"alias_kind":"pith_short_16","alias_value":"2HJWD4S45G4O4KFL","created_at":"2026-07-05T06:02:26Z"},{"alias_kind":"pith_short_8","alias_value":"2HJWD4S4","created_at":"2026-07-05T06:02:26Z"}],"graph_snapshots":[{"event_id":"sha256:32bfae2aa9750fc5e2603f8e97ada15c5cc481be1b5faebb23f0c1e249f96f59","target":"graph","created_at":"2026-07-05T06:02:26Z","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/1911.10300/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Breaking the time-reversal symmetry of light is of great importance for fundamental physics and has attracted increasing interest in the study of non-reciprocal photonic devices. Here, we experimentally demonstrate a chiral cavity QED system with multiple atoms strongly coupled to a Fabry-Perot cavity. By polarizing the internal quantum state of the atoms, the time-reversal symmetry of the atom-cavity interaction is broken. The strongly coupled atom-cavity system can be described by non-reciprocal quasiparticles, i.e., the cavity polariton. When it works in the linear regime, the inherent nonr","authors_text":"Chang-Ling Zou, Gang Li, Hai He, Ming Li, Pengfei Yang, Pengfei Zhang, Tiancai Zhang, Xing Han, Yuhua Qian","cross_cats":["physics.atom-ph","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-11-23T02:32:21Z","title":"Non-reciprocal Cavity Polariton with Atoms Strongly Coupled to Optical Cavity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.10300","kind":"arxiv","version":2},"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":"sha256:78d709a4affa862ad21cc9a649cf61cf7a02aa8943514b5fcba6507366bbe441","target":"record","created_at":"2026-07-05T06:02:26Z","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":"ae89073084d29fdff5f8ac29e08c7132a22ea280fbd7c5666c2f721c8a80271e","cross_cats_sorted":["physics.atom-ph","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-11-23T02:32:21Z","title_canon_sha256":"fd52c00f6ca6edee8f3eb5f1c16e7d475b2a081c1fa90624fc0b7a0ed237a479"},"schema_version":"1.0","source":{"id":"1911.10300","kind":"arxiv","version":2}},"canonical_sha256":"d1d361f25ce9b8ee28ab97406924a123aaada2805e313101785dcd4f283a1e0b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1d361f25ce9b8ee28ab97406924a123aaada2805e313101785dcd4f283a1e0b","first_computed_at":"2026-07-05T06:02:26.231497Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:02:26.231497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/V4DDsi9TwdEA2IOIrFfW3YpVuUNWb+xEzLEUgF1Lmq1Wwo7qxxBaBbHaibTURJRgKOXMxXzYIZVpm5S1I1QCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:02:26.231898Z","signed_message":"canonical_sha256_bytes"},"source_id":"1911.10300","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:78d709a4affa862ad21cc9a649cf61cf7a02aa8943514b5fcba6507366bbe441","sha256:32bfae2aa9750fc5e2603f8e97ada15c5cc481be1b5faebb23f0c1e249f96f59"],"state_sha256":"0047e374a0c6b1b6daecc671e02e8bfa87e051995728838aff7951c89559498d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8Li+l4jmm35b5Bvqa3S2TiQdycT/QZYW0LE1moQInakXyve8YibvNpgPdcT3nJn3D7alFfFyB9zYplUuEBhBCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T12:24:43.587956Z","bundle_sha256":"ab04a16beb15b328fcde9ab9d0be4532d0a90f1c0043e90c8801ff57880f3060"}}