{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:3A4YIOHLQMEWN344YPGEMUJACW","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":"54593b0ad1c9cce96f452f9b8037bacdf3cca85e2d5544e7bf5937d7ba8356ad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2020-02-11T13:23:14Z","title_canon_sha256":"4c8c0210dc602bfb3f4e347afe83b287307eaf1d8bd162ccf8e1778fd0710ae4"},"schema_version":"1.0","source":{"id":"2002.04366","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.04366","created_at":"2026-07-05T06:31:53Z"},{"alias_kind":"arxiv_version","alias_value":"2002.04366v1","created_at":"2026-07-05T06:31:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.04366","created_at":"2026-07-05T06:31:53Z"},{"alias_kind":"pith_short_12","alias_value":"3A4YIOHLQMEW","created_at":"2026-07-05T06:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"3A4YIOHLQMEWN344","created_at":"2026-07-05T06:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"3A4YIOHL","created_at":"2026-07-05T06:31:53Z"}],"graph_snapshots":[{"event_id":"sha256:fb0eccf2e2434a442b4c76a6c9a511f2114fd02cc45e725c2e6b78d85f80d983","target":"graph","created_at":"2026-07-05T06:31:53Z","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/2002.04366/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"HgCdTe-based quantum cascade lasers operating in the GaAs phonon Reststrahlen band with a target wavelength of 36 mkm are theoretically investigated using the balance equations method. The optimized active region designs, which are based on three and two quantum wells, exhibit a peak gain exceeding 100 cm(-1) at 150 K. We analyze the temperature dependences of the peak gain and predict the maximum operation temperatures of 170 K and 225 K for three- and two-well designs, respectively. At high temperatures (T > 120 K), the better temperature performance of the two-well design is associated with","authors_text":"A.A. Afonenko, A.A. Dubinov, D.S. Ponomarev, D.V. Ushakov, R.A. Khabibullin, S.V. Morozov, V.Ya. Aleshkin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2020-02-11T13:23:14Z","title":"HgCdTe-based quantum cascade lasers operating in the GaAs phonon Reststrahlen band predicted by the balance equations method"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.04366","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":"sha256:1f5f3f59ecd9065bf946640f776292e17cf80717eadfeafe8ee6a72e31a0e007","target":"record","created_at":"2026-07-05T06:31:53Z","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":"54593b0ad1c9cce96f452f9b8037bacdf3cca85e2d5544e7bf5937d7ba8356ad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2020-02-11T13:23:14Z","title_canon_sha256":"4c8c0210dc602bfb3f4e347afe83b287307eaf1d8bd162ccf8e1778fd0710ae4"},"schema_version":"1.0","source":{"id":"2002.04366","kind":"arxiv","version":1}},"canonical_sha256":"d8398438eb830966ef9cc3cc46512015bc35e8bb6c7e143ee5675c9405aae68d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d8398438eb830966ef9cc3cc46512015bc35e8bb6c7e143ee5675c9405aae68d","first_computed_at":"2026-07-05T06:31:53.209286Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:31:53.209286Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DVXaFltjMeZ0Qi+XBJUA2be3E58lEIRnoKrVMKj3eKPsRKP14pK4iifA1zRDydjOc2S8JUhTZ3TfKTRpqR62DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:31:53.209732Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.04366","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1f5f3f59ecd9065bf946640f776292e17cf80717eadfeafe8ee6a72e31a0e007","sha256:fb0eccf2e2434a442b4c76a6c9a511f2114fd02cc45e725c2e6b78d85f80d983"],"state_sha256":"3f7f966250305b06edb7be6f97be66235f6fe5316bf958a0e963ca880730d793"}