{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:ZSEAITBRF7XGYVIZW37KCEGIVT","short_pith_number":"pith:ZSEAITBR","canonical_record":{"source":{"id":"1612.04628","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-12-14T13:39:47Z","cross_cats_sorted":[],"title_canon_sha256":"e89b2cd4c226644f0211fa5319a3a487d6772ff3273fc573b5325a3b7f9a0322","abstract_canon_sha256":"7301703f67f88f4157229e014ef559ec26be5d229060f54e4af19a214d56fb65"},"schema_version":"1.0"},"canonical_sha256":"cc88044c312fee6c5519b6fea110c8acdce2c1bd6257c29baa518d65f3beeb74","source":{"kind":"arxiv","id":"1612.04628","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.04628","created_at":"2026-05-18T00:54:58Z"},{"alias_kind":"arxiv_version","alias_value":"1612.04628v1","created_at":"2026-05-18T00:54:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.04628","created_at":"2026-05-18T00:54:58Z"},{"alias_kind":"pith_short_12","alias_value":"ZSEAITBRF7XG","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"ZSEAITBRF7XGYVIZ","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"ZSEAITBR","created_at":"2026-05-18T12:30:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:ZSEAITBRF7XGYVIZW37KCEGIVT","target":"record","payload":{"canonical_record":{"source":{"id":"1612.04628","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-12-14T13:39:47Z","cross_cats_sorted":[],"title_canon_sha256":"e89b2cd4c226644f0211fa5319a3a487d6772ff3273fc573b5325a3b7f9a0322","abstract_canon_sha256":"7301703f67f88f4157229e014ef559ec26be5d229060f54e4af19a214d56fb65"},"schema_version":"1.0"},"canonical_sha256":"cc88044c312fee6c5519b6fea110c8acdce2c1bd6257c29baa518d65f3beeb74","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:54:58.997543Z","signature_b64":"TR+SkusrY+BjmbDXlFmM2OAQ/qgWt/bDfBQkY1OIULQ2jx4WnXUGREkNfR+oB8K73kjyOOGqYyAJrTA+P/mDDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cc88044c312fee6c5519b6fea110c8acdce2c1bd6257c29baa518d65f3beeb74","last_reissued_at":"2026-05-18T00:54:58.996899Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:54:58.996899Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.04628","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":"2026-05-18T00:54:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xw3vnDWuUNPGh/WWp4mVKSCBO5foVGyfakQsUCeOt5DR4ul2FGv6JDjgVfKDJeBFuzL1Qi/S7EjdQKUeAgB2CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T15:41:42.813566Z"},"content_sha256":"6903123e2925e00210c6cda11d90a6f227acb78d1ae992ea337836268768210a","schema_version":"1.0","event_id":"sha256:6903123e2925e00210c6cda11d90a6f227acb78d1ae992ea337836268768210a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:ZSEAITBRF7XGYVIZW37KCEGIVT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Floquet control of the gain and loss in a PT-symmetric optical coupler","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Bo Zhu, Honghua Zhong, Shufang Hu, Yi Wu, Zheng Zhou","submitted_at":"2016-12-14T13:39:47Z","abstract_excerpt":"Controlling the balanced gain and loss in a PT-symmetric system is a rather challenging task. Utilizing Floquet theory, we explore the constructive role of periodic modulation in controlling the gain and loss of a PT-symmetric optical coupler. It is found that the gain and loss of the system can be manipulated by applying a periodic modulation. Further, such an original non-Hermitian system can even be modulated into an effective Hermitian system derived by the high-frequency Floquet method. Therefore, compared with other PT symmetry control schemes, our protocol can modulate the unbroken PT-s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.04628","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":"2026-05-18T00:54:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Er5tPUgdulau01/QDMoRku5ns2fvtGs57KeIk4CqI3dTzyvseUvkjlOxLVRncorIVM0hCbeH3pvAJ+gzag6KAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T15:41:42.814337Z"},"content_sha256":"a497539a96827a4e1f5b12f29fb046517ba30ede0ac7cebc8c5622dd19acf850","schema_version":"1.0","event_id":"sha256:a497539a96827a4e1f5b12f29fb046517ba30ede0ac7cebc8c5622dd19acf850"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZSEAITBRF7XGYVIZW37KCEGIVT/bundle.json","state_url":"https://pith.science/pith/ZSEAITBRF7XGYVIZW37KCEGIVT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZSEAITBRF7XGYVIZW37KCEGIVT/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":"2026-06-08T15:41:42Z","links":{"resolver":"https://pith.science/pith/ZSEAITBRF7XGYVIZW37KCEGIVT","bundle":"https://pith.science/pith/ZSEAITBRF7XGYVIZW37KCEGIVT/bundle.json","state":"https://pith.science/pith/ZSEAITBRF7XGYVIZW37KCEGIVT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZSEAITBRF7XGYVIZW37KCEGIVT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:ZSEAITBRF7XGYVIZW37KCEGIVT","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":"7301703f67f88f4157229e014ef559ec26be5d229060f54e4af19a214d56fb65","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-12-14T13:39:47Z","title_canon_sha256":"e89b2cd4c226644f0211fa5319a3a487d6772ff3273fc573b5325a3b7f9a0322"},"schema_version":"1.0","source":{"id":"1612.04628","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.04628","created_at":"2026-05-18T00:54:58Z"},{"alias_kind":"arxiv_version","alias_value":"1612.04628v1","created_at":"2026-05-18T00:54:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.04628","created_at":"2026-05-18T00:54:58Z"},{"alias_kind":"pith_short_12","alias_value":"ZSEAITBRF7XG","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"ZSEAITBRF7XGYVIZ","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"ZSEAITBR","created_at":"2026-05-18T12:30:55Z"}],"graph_snapshots":[{"event_id":"sha256:a497539a96827a4e1f5b12f29fb046517ba30ede0ac7cebc8c5622dd19acf850","target":"graph","created_at":"2026-05-18T00:54:58Z","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":"Controlling the balanced gain and loss in a PT-symmetric system is a rather challenging task. Utilizing Floquet theory, we explore the constructive role of periodic modulation in controlling the gain and loss of a PT-symmetric optical coupler. It is found that the gain and loss of the system can be manipulated by applying a periodic modulation. Further, such an original non-Hermitian system can even be modulated into an effective Hermitian system derived by the high-frequency Floquet method. Therefore, compared with other PT symmetry control schemes, our protocol can modulate the unbroken PT-s","authors_text":"Bo Zhu, Honghua Zhong, Shufang Hu, Yi Wu, Zheng Zhou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-12-14T13:39:47Z","title":"Floquet control of the gain and loss in a PT-symmetric optical coupler"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.04628","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":"sha256:6903123e2925e00210c6cda11d90a6f227acb78d1ae992ea337836268768210a","target":"record","created_at":"2026-05-18T00:54:58Z","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":"7301703f67f88f4157229e014ef559ec26be5d229060f54e4af19a214d56fb65","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-12-14T13:39:47Z","title_canon_sha256":"e89b2cd4c226644f0211fa5319a3a487d6772ff3273fc573b5325a3b7f9a0322"},"schema_version":"1.0","source":{"id":"1612.04628","kind":"arxiv","version":1}},"canonical_sha256":"cc88044c312fee6c5519b6fea110c8acdce2c1bd6257c29baa518d65f3beeb74","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc88044c312fee6c5519b6fea110c8acdce2c1bd6257c29baa518d65f3beeb74","first_computed_at":"2026-05-18T00:54:58.996899Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:54:58.996899Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TR+SkusrY+BjmbDXlFmM2OAQ/qgWt/bDfBQkY1OIULQ2jx4WnXUGREkNfR+oB8K73kjyOOGqYyAJrTA+P/mDDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:54:58.997543Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.04628","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6903123e2925e00210c6cda11d90a6f227acb78d1ae992ea337836268768210a","sha256:a497539a96827a4e1f5b12f29fb046517ba30ede0ac7cebc8c5622dd19acf850"],"state_sha256":"94634a9cd185ece5eeb22584b9e0a978f0abfc286eb9150d5deccc3884f5597a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/dfB9Ymf0wm25DpJD4HkopA9ZuzQ0OCbbzxEz9NefTii9mu0SOFJ6qdzbD3LrBlvlS7YlgoLjrRfrdBi6PVwCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T15:41:42.818435Z","bundle_sha256":"181e09661533a83fe6012af1b92dae98a00fd0c1341dbbd760e714b587c3074a"}}