{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:GY5TIPFVP3ZPLYFUBC6MU4UIDK","short_pith_number":"pith:GY5TIPFV","canonical_record":{"source":{"id":"2109.09284","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-09-20T03:14:58Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"90ed339f2933d33d7a56a66aa945ac835b404b3508094a3313a3c441a90e6455","abstract_canon_sha256":"eed8281a87dae2e4707b173f4b3834bb4b331b031664b7c62c734f846956c09d"},"schema_version":"1.0"},"canonical_sha256":"363b343cb57ef2f5e0b408bcca72881aafff618f455f5a18af5fba2d868977c3","source":{"kind":"arxiv","id":"2109.09284","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.09284","created_at":"2026-07-05T04:27:45Z"},{"alias_kind":"arxiv_version","alias_value":"2109.09284v2","created_at":"2026-07-05T04:27:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.09284","created_at":"2026-07-05T04:27:45Z"},{"alias_kind":"pith_short_12","alias_value":"GY5TIPFVP3ZP","created_at":"2026-07-05T04:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"GY5TIPFVP3ZPLYFU","created_at":"2026-07-05T04:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"GY5TIPFV","created_at":"2026-07-05T04:27:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:GY5TIPFVP3ZPLYFUBC6MU4UIDK","target":"record","payload":{"canonical_record":{"source":{"id":"2109.09284","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-09-20T03:14:58Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"90ed339f2933d33d7a56a66aa945ac835b404b3508094a3313a3c441a90e6455","abstract_canon_sha256":"eed8281a87dae2e4707b173f4b3834bb4b331b031664b7c62c734f846956c09d"},"schema_version":"1.0"},"canonical_sha256":"363b343cb57ef2f5e0b408bcca72881aafff618f455f5a18af5fba2d868977c3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:27:45.690787Z","signature_b64":"3gxjWjSwskgsVNg1rFdD3T77WQNO/HPN8CgqM0n/yCTSB4xeglDEB6lRhEmJdL7qexQ6sn9buumDHWw2MxbABg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"363b343cb57ef2f5e0b408bcca72881aafff618f455f5a18af5fba2d868977c3","last_reissued_at":"2026-07-05T04:27:45.690261Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:27:45.690261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.09284","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":"2026-07-05T04:27:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hLCQgd5lkL6nv1wyUscLyURDYfD8b11ccEx0Wi4wg7assEhoE/fE7Vw7hwmSJE3tpoQMb2p4M0GUoCt0xkICCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T13:25:42.153815Z"},"content_sha256":"9db7aad4868126a5cb4c1007f1b85c2f55547f18e379428c449b4efa8ebddcfe","schema_version":"1.0","event_id":"sha256:9db7aad4868126a5cb4c1007f1b85c2f55547f18e379428c449b4efa8ebddcfe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:GY5TIPFVP3ZPLYFUBC6MU4UIDK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tailoring solid-state single-photon sources with stimulated emissions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.optics","authors_text":"Haiqiao Ni, Hanqing Liu, Huiming Hao, Jake Iles-Smith, Jin Liu, Shangjun Xiang, Shulun Li, Shunfa Liu, Siyuan Yu, Xiangbin Su, Xuehua Wang, Xueshi Li, Ying Yu, Yuming Wei, Zhichuan Niu","submitted_at":"2021-09-20T03:14:58Z","abstract_excerpt":"The coherent interaction of electromagnetic fields with solid-state two-level systems can yield deterministic quantum light sources for photonic quantum technologies. To date, the performance of semiconductor single-photon sources based on three-level systems is limited mainly due to a lack of high photon indistinguishability. Here, we tailor the cavity-enhanced spontaneous emission from a ladder-type three-level system in a single epitaxial quantum dot (QD) through stimulated emission. After populating the biexciton (XX) of the QD through two-photon resonant excitation (TPE), we use another l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.09284","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/2109.09284/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":"2026-07-05T04:27:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"51gKPdtDXjRAUw+h2UsIrC0fVDwsez+xP7LReq/gBv4f2I2itzNLTjs6SYBrhiQgXWY2yeJfL3ZUAY4vaLJiBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T13:25:42.154188Z"},"content_sha256":"511662b675efc2ea8f23829aba40263ac5aa5b1c86663461e0b72318119e82de","schema_version":"1.0","event_id":"sha256:511662b675efc2ea8f23829aba40263ac5aa5b1c86663461e0b72318119e82de"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GY5TIPFVP3ZPLYFUBC6MU4UIDK/bundle.json","state_url":"https://pith.science/pith/GY5TIPFVP3ZPLYFUBC6MU4UIDK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GY5TIPFVP3ZPLYFUBC6MU4UIDK/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":"2026-07-06T13:25:42Z","links":{"resolver":"https://pith.science/pith/GY5TIPFVP3ZPLYFUBC6MU4UIDK","bundle":"https://pith.science/pith/GY5TIPFVP3ZPLYFUBC6MU4UIDK/bundle.json","state":"https://pith.science/pith/GY5TIPFVP3ZPLYFUBC6MU4UIDK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GY5TIPFVP3ZPLYFUBC6MU4UIDK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:GY5TIPFVP3ZPLYFUBC6MU4UIDK","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":"eed8281a87dae2e4707b173f4b3834bb4b331b031664b7c62c734f846956c09d","cross_cats_sorted":["quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-09-20T03:14:58Z","title_canon_sha256":"90ed339f2933d33d7a56a66aa945ac835b404b3508094a3313a3c441a90e6455"},"schema_version":"1.0","source":{"id":"2109.09284","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.09284","created_at":"2026-07-05T04:27:45Z"},{"alias_kind":"arxiv_version","alias_value":"2109.09284v2","created_at":"2026-07-05T04:27:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.09284","created_at":"2026-07-05T04:27:45Z"},{"alias_kind":"pith_short_12","alias_value":"GY5TIPFVP3ZP","created_at":"2026-07-05T04:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"GY5TIPFVP3ZPLYFU","created_at":"2026-07-05T04:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"GY5TIPFV","created_at":"2026-07-05T04:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:511662b675efc2ea8f23829aba40263ac5aa5b1c86663461e0b72318119e82de","target":"graph","created_at":"2026-07-05T04:27:45Z","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/2109.09284/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The coherent interaction of electromagnetic fields with solid-state two-level systems can yield deterministic quantum light sources for photonic quantum technologies. To date, the performance of semiconductor single-photon sources based on three-level systems is limited mainly due to a lack of high photon indistinguishability. Here, we tailor the cavity-enhanced spontaneous emission from a ladder-type three-level system in a single epitaxial quantum dot (QD) through stimulated emission. After populating the biexciton (XX) of the QD through two-photon resonant excitation (TPE), we use another l","authors_text":"Haiqiao Ni, Hanqing Liu, Huiming Hao, Jake Iles-Smith, Jin Liu, Shangjun Xiang, Shulun Li, Shunfa Liu, Siyuan Yu, Xiangbin Su, Xuehua Wang, Xueshi Li, Ying Yu, Yuming Wei, Zhichuan Niu","cross_cats":["quant-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-09-20T03:14:58Z","title":"Tailoring solid-state single-photon sources with stimulated emissions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.09284","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":"sha256:9db7aad4868126a5cb4c1007f1b85c2f55547f18e379428c449b4efa8ebddcfe","target":"record","created_at":"2026-07-05T04:27:45Z","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":"eed8281a87dae2e4707b173f4b3834bb4b331b031664b7c62c734f846956c09d","cross_cats_sorted":["quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-09-20T03:14:58Z","title_canon_sha256":"90ed339f2933d33d7a56a66aa945ac835b404b3508094a3313a3c441a90e6455"},"schema_version":"1.0","source":{"id":"2109.09284","kind":"arxiv","version":2}},"canonical_sha256":"363b343cb57ef2f5e0b408bcca72881aafff618f455f5a18af5fba2d868977c3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"363b343cb57ef2f5e0b408bcca72881aafff618f455f5a18af5fba2d868977c3","first_computed_at":"2026-07-05T04:27:45.690261Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:27:45.690261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3gxjWjSwskgsVNg1rFdD3T77WQNO/HPN8CgqM0n/yCTSB4xeglDEB6lRhEmJdL7qexQ6sn9buumDHWw2MxbABg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:27:45.690787Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.09284","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9db7aad4868126a5cb4c1007f1b85c2f55547f18e379428c449b4efa8ebddcfe","sha256:511662b675efc2ea8f23829aba40263ac5aa5b1c86663461e0b72318119e82de"],"state_sha256":"b77bb483c6819c5e361d4ba436b4b12aa946c95c85daea5ffbbf3a48b3fac51c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Sk2XIeYJL7ukkewXgBR/ysLVXptm9a46AiLOLhGU1ywdvGSyMQNxh97vQukqP69GxOiCts9Y72BnTvhvix0sAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T13:25:42.156313Z","bundle_sha256":"99774f325701931cfe06aeb53138e59366852e9d79ba546ae07d23fb1a33eab7"}}