{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:3CQUAYF5ZMC7VLXPNXWRBLIWLX","short_pith_number":"pith:3CQUAYF5","canonical_record":{"source":{"id":"1809.10365","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-09-27T06:22:26Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"d0d49da95c371e89d644c258abfceaaa8444968d2e65564cb8e3a49878bc7201","abstract_canon_sha256":"2a6692b41952ed7e19aa550d1c41596ce5ee19bfba9ba3fdfe0cb0741a93a175"},"schema_version":"1.0"},"canonical_sha256":"d8a14060bdcb05faaeef6ded10ad165de833f40ce4bcb0228af7cfd168f3269e","source":{"kind":"arxiv","id":"1809.10365","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.10365","created_at":"2026-05-18T00:04:38Z"},{"alias_kind":"arxiv_version","alias_value":"1809.10365v1","created_at":"2026-05-18T00:04:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.10365","created_at":"2026-05-18T00:04:38Z"},{"alias_kind":"pith_short_12","alias_value":"3CQUAYF5ZMC7","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"3CQUAYF5ZMC7VLXP","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"3CQUAYF5","created_at":"2026-05-18T12:32:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:3CQUAYF5ZMC7VLXPNXWRBLIWLX","target":"record","payload":{"canonical_record":{"source":{"id":"1809.10365","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-09-27T06:22:26Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"d0d49da95c371e89d644c258abfceaaa8444968d2e65564cb8e3a49878bc7201","abstract_canon_sha256":"2a6692b41952ed7e19aa550d1c41596ce5ee19bfba9ba3fdfe0cb0741a93a175"},"schema_version":"1.0"},"canonical_sha256":"d8a14060bdcb05faaeef6ded10ad165de833f40ce4bcb0228af7cfd168f3269e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:38.514599Z","signature_b64":"G5liNVAxD8jQ8G20F2pFnuiABfOGMusJoJUdJ3MqiTP53IJFgcmhrV7u77mdJ5LWIMkc9Sj5i8Bk5b4axG+IAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d8a14060bdcb05faaeef6ded10ad165de833f40ce4bcb0228af7cfd168f3269e","last_reissued_at":"2026-05-18T00:04:38.514035Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:38.514035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.10365","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:04:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AgUvZbKjlq3gJNN9UcuM7MyYcftMdEna9TSLHPvvhc95lEAQ2Enyl44inSmHtUT4y6tdqt9mcXAcdGUrsYprDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:24:43.338042Z"},"content_sha256":"7cc3e4315ed6823c406637f33672641c6e22d5069881833577d1c41270808fbb","schema_version":"1.0","event_id":"sha256:7cc3e4315ed6823c406637f33672641c6e22d5069881833577d1c41270808fbb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:3CQUAYF5ZMC7VLXPNXWRBLIWLX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Asymmetric lasing at spectral singularities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.optics","authors_text":"L. Jin","submitted_at":"2018-09-27T06:22:26Z","abstract_excerpt":"Scattering coefficients can diverge at spectral singularities. In such situation, the stationary solution becomes a laser solution with outgoing waves only. We explore a parity-time (PT)-symmetric non-Hermitian two-arm Aharonov-Bohm interferometer consisting of three coupled resonators enclosing synthetic magnetic flux. The synthetic magnetic flux does not break the PT symmetry, which protects the symmetric transmission. The features and conditions of symmetric, asymmetric, and unidirectional lasing at spectral singularities are discussed. We elucidate that lasing affected by the interference "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.10365","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T00:04:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ki8xn/ZnD+iSlYSwGgB5XQ0dTYSGE1dYq2B+1NkQ6veQiNXxidjqE7Ol+MNWYUqHDwLq0PvzPLmKWpVK1cUgCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:24:43.338802Z"},"content_sha256":"801f5f281e09b040c2f9263c7aa1d284144c4aa87a943985a83261542c10a758","schema_version":"1.0","event_id":"sha256:801f5f281e09b040c2f9263c7aa1d284144c4aa87a943985a83261542c10a758"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3CQUAYF5ZMC7VLXPNXWRBLIWLX/bundle.json","state_url":"https://pith.science/pith/3CQUAYF5ZMC7VLXPNXWRBLIWLX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3CQUAYF5ZMC7VLXPNXWRBLIWLX/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":"2026-06-08T21:24:43Z","links":{"resolver":"https://pith.science/pith/3CQUAYF5ZMC7VLXPNXWRBLIWLX","bundle":"https://pith.science/pith/3CQUAYF5ZMC7VLXPNXWRBLIWLX/bundle.json","state":"https://pith.science/pith/3CQUAYF5ZMC7VLXPNXWRBLIWLX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3CQUAYF5ZMC7VLXPNXWRBLIWLX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3CQUAYF5ZMC7VLXPNXWRBLIWLX","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":"2a6692b41952ed7e19aa550d1c41596ce5ee19bfba9ba3fdfe0cb0741a93a175","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-09-27T06:22:26Z","title_canon_sha256":"d0d49da95c371e89d644c258abfceaaa8444968d2e65564cb8e3a49878bc7201"},"schema_version":"1.0","source":{"id":"1809.10365","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.10365","created_at":"2026-05-18T00:04:38Z"},{"alias_kind":"arxiv_version","alias_value":"1809.10365v1","created_at":"2026-05-18T00:04:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.10365","created_at":"2026-05-18T00:04:38Z"},{"alias_kind":"pith_short_12","alias_value":"3CQUAYF5ZMC7","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"3CQUAYF5ZMC7VLXP","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"3CQUAYF5","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:801f5f281e09b040c2f9263c7aa1d284144c4aa87a943985a83261542c10a758","target":"graph","created_at":"2026-05-18T00:04:38Z","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":"Scattering coefficients can diverge at spectral singularities. In such situation, the stationary solution becomes a laser solution with outgoing waves only. We explore a parity-time (PT)-symmetric non-Hermitian two-arm Aharonov-Bohm interferometer consisting of three coupled resonators enclosing synthetic magnetic flux. The synthetic magnetic flux does not break the PT symmetry, which protects the symmetric transmission. The features and conditions of symmetric, asymmetric, and unidirectional lasing at spectral singularities are discussed. We elucidate that lasing affected by the interference ","authors_text":"L. Jin","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-09-27T06:22:26Z","title":"Asymmetric lasing at spectral singularities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.10365","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":"sha256:7cc3e4315ed6823c406637f33672641c6e22d5069881833577d1c41270808fbb","target":"record","created_at":"2026-05-18T00:04:38Z","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":"2a6692b41952ed7e19aa550d1c41596ce5ee19bfba9ba3fdfe0cb0741a93a175","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-09-27T06:22:26Z","title_canon_sha256":"d0d49da95c371e89d644c258abfceaaa8444968d2e65564cb8e3a49878bc7201"},"schema_version":"1.0","source":{"id":"1809.10365","kind":"arxiv","version":1}},"canonical_sha256":"d8a14060bdcb05faaeef6ded10ad165de833f40ce4bcb0228af7cfd168f3269e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d8a14060bdcb05faaeef6ded10ad165de833f40ce4bcb0228af7cfd168f3269e","first_computed_at":"2026-05-18T00:04:38.514035Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:38.514035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G5liNVAxD8jQ8G20F2pFnuiABfOGMusJoJUdJ3MqiTP53IJFgcmhrV7u77mdJ5LWIMkc9Sj5i8Bk5b4axG+IAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:38.514599Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.10365","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7cc3e4315ed6823c406637f33672641c6e22d5069881833577d1c41270808fbb","sha256:801f5f281e09b040c2f9263c7aa1d284144c4aa87a943985a83261542c10a758"],"state_sha256":"9a2c02fc14b6b200d4d59e3fd73ca14adda44fc394ef1414da507e88e2cb3657"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vuqf7u68j27RZDfFNMpLGoDtd1Ro/E5gS2YEq1oQY+hMuUelwiNyKxnBB4IRzN+PSAHQVd9QLbhZoF0izwTNBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T21:24:43.342948Z","bundle_sha256":"4aae2e4c5b33135b86932503bde3eee19d162eab1c7825a1577d71577f1f1b40"}}