{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:RCARKR5NUPP7N4HSVMNMLND5UB","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":"d5b6a699caf56280c731a4f26df25862cef1355b1053cc52c66032347578fe4c","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-06T17:59:50Z","title_canon_sha256":"b113afe66823517d0e3723e2270bc4b5ae0e1bc100c03b6a29b0b9ac48f536f2"},"schema_version":"1.0","source":{"id":"1704.01961","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.01961","created_at":"2026-05-18T00:36:14Z"},{"alias_kind":"arxiv_version","alias_value":"1704.01961v1","created_at":"2026-05-18T00:36:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.01961","created_at":"2026-05-18T00:36:14Z"},{"alias_kind":"pith_short_12","alias_value":"RCARKR5NUPP7","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"RCARKR5NUPP7N4HS","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"RCARKR5N","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:a92e28ab4a2ebba5728b73c10e05ad30e1e8d21f4b24808c1acdbe4d1b6b5c4c","target":"graph","created_at":"2026-05-18T00:36:14Z","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":"We demonstrate a single-atom maser consisting of a semiconductor double quantum dot (DQD) that is embedded in a high quality factor microwave cavity. A finite bias drives the DQD out of equilibrium, resulting in sequential single electron tunneling and masing. We develop a dynamic tuning protocol that allows us to controllably increase the time-averaged repumping rate of the DQD at a fixed level detuning, and quantitatively study the transition through the masing threshold. We further examine the crossover from incoherent to coherent emission by measuring the photon statistics across the masin","authors_text":"C. Eichler, J. M. Taylor, J. R. Petta, J. Stehlik, M. J. Gullans, T. Hartke, X. Mi, Y.-Y. Liu","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-06T17:59:50Z","title":"Threshold Dynamics of a Semiconductor Single Atom Maser"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.01961","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:ff89fdace1576ef549c05a7f52442116a4fa13eab2ff5592ae5bacf033052fe9","target":"record","created_at":"2026-05-18T00:36:14Z","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":"d5b6a699caf56280c731a4f26df25862cef1355b1053cc52c66032347578fe4c","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-06T17:59:50Z","title_canon_sha256":"b113afe66823517d0e3723e2270bc4b5ae0e1bc100c03b6a29b0b9ac48f536f2"},"schema_version":"1.0","source":{"id":"1704.01961","kind":"arxiv","version":1}},"canonical_sha256":"88811547ada3dff6f0f2ab1ac5b47da062b90dbaccdfa48b704ad61561c26dd2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"88811547ada3dff6f0f2ab1ac5b47da062b90dbaccdfa48b704ad61561c26dd2","first_computed_at":"2026-05-18T00:36:14.100725Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:14.100725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mypsjkMx95wcF/CA5qGRkY6AbQjwMi4lrvGPx0Pk49Uima7jGaeTb0sgoy6+qsXudZxeH1rgbk2P0Zg/SFHHCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:14.101408Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.01961","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ff89fdace1576ef549c05a7f52442116a4fa13eab2ff5592ae5bacf033052fe9","sha256:a92e28ab4a2ebba5728b73c10e05ad30e1e8d21f4b24808c1acdbe4d1b6b5c4c"],"state_sha256":"2450eeadc5ce0ac950da741ccea9504fcf562f1971e56b2bd4f0f2d46fcb13fd"}