{"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"}