{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:T6EHLUNM3GDJOFZXLCQJ3XZZ57","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":"c8db5b8f708c1ec4344889826c4300d59e66519e53ce1d3f657f1894e36c9dce","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-11-22T19:42:55Z","title_canon_sha256":"07350e9b86e56ead2ec6a0c3dcd8e8a142e278c54297d10efb384735f2739050"},"schema_version":"1.0","source":{"id":"1611.07484","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.07484","created_at":"2026-05-18T00:45:15Z"},{"alias_kind":"arxiv_version","alias_value":"1611.07484v2","created_at":"2026-05-18T00:45:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.07484","created_at":"2026-05-18T00:45:15Z"},{"alias_kind":"pith_short_12","alias_value":"T6EHLUNM3GDJ","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"T6EHLUNM3GDJOFZX","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"T6EHLUNM","created_at":"2026-05-18T12:30:44Z"}],"graph_snapshots":[{"event_id":"sha256:b89938bb1a5dca922776618da839683750d2537e5b5a234175084dd2ff3013b1","target":"graph","created_at":"2026-05-18T00:45:15Z","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":"The use of artificial atoms as an active lasing medium opens a way to construct novel sources of nonclassical radiation. An example is the creation of photon-number squeezed light. Here we present a design of a laser consisting of multiple Cooper-pair transistors coupled to a microwave resonator. Over a broad range of experimentally realizable parameters, this laser creates photon-number squeezed microwave radiation, characterized by a Fano factor $F \\ll 1$, at a very high resonator photon number. We investigate the impact of gate-charge disorder in a Cooper-pair transistor and show that the s","authors_text":"Juha Lepp\\\"akangas, Martin Koppenh\\\"ofer, Michael Marthaler","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-11-22T19:42:55Z","title":"Creating photon-number squeezed strong microwave fields by a Cooper-pair injection laser"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.07484","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:d68198c7944ffcffc069e9c4ca4302408f25e6ca95e08c2f1d27c844528a8e09","target":"record","created_at":"2026-05-18T00:45:15Z","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":"c8db5b8f708c1ec4344889826c4300d59e66519e53ce1d3f657f1894e36c9dce","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-11-22T19:42:55Z","title_canon_sha256":"07350e9b86e56ead2ec6a0c3dcd8e8a142e278c54297d10efb384735f2739050"},"schema_version":"1.0","source":{"id":"1611.07484","kind":"arxiv","version":2}},"canonical_sha256":"9f8875d1acd98697173758a09ddf39efd60faf7677f53ba4afdac2dbd32065cb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9f8875d1acd98697173758a09ddf39efd60faf7677f53ba4afdac2dbd32065cb","first_computed_at":"2026-05-18T00:45:15.018795Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:45:15.018795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gxIn7xGJXu1JRmeOddHua8FViyMsLBmjsWD3q+Q8hCBidsL1SpfTKA5THh/rcTjkFw2+kuXgaIDlnpARjaSqBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:45:15.019475Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.07484","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d68198c7944ffcffc069e9c4ca4302408f25e6ca95e08c2f1d27c844528a8e09","sha256:b89938bb1a5dca922776618da839683750d2537e5b5a234175084dd2ff3013b1"],"state_sha256":"77e3cfe790f826bff254624ce80d0e51a3e38082fcb625922ccc7cd875ac7509"}