{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:2RS7SJV3BGNSJIB2NKTG5NEQRD","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":"248ee34dc118e88e642beb3de21671872a95588049622cc0f45bb2eb82e21b9a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-10-01T04:34:51Z","title_canon_sha256":"4900c37a2cb646ffdd3db9050de621d4808963c2790e59c950e9e7a6364c0c14"},"schema_version":"1.0","source":{"id":"1310.0136","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.0136","created_at":"2026-05-18T01:47:23Z"},{"alias_kind":"arxiv_version","alias_value":"1310.0136v1","created_at":"2026-05-18T01:47:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.0136","created_at":"2026-05-18T01:47:23Z"},{"alias_kind":"pith_short_12","alias_value":"2RS7SJV3BGNS","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"2RS7SJV3BGNSJIB2","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"2RS7SJV3","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:f0b05c9617d809ba3c0c2f72c6ee77b81bae44c4964809c1ced9add2f8961592","target":"graph","created_at":"2026-05-18T01:47:23Z","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":"A novel type of spaser with the net amplification of surface plasmons (SPs) in doped graphene nanoribbon is proposed. The plasmons in THz region can be generated in a dopped graphene nanoribbon due to nonradiative excitation by emitters like two level quantum dots located along a graphene nanoribbon. The minimal population inversion per unit area, needed for the net amplification of SPs in a doped graphene nanoribbon is obtained. The dependence of the minimal population inversion on the surface plasmon wavevector, graphene nanoribbon width, doping and damping parameters necessary for the ampli","authors_text":"Oleg L. Berman, Roman Ya. Kezerashvili, Yurii E. Lozovik","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-10-01T04:34:51Z","title":"Graphene nanoribbon based spaser"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.0136","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":"sha256:8bb018c679c4953342f4ba526c363b6d16acec91ac237b21dea4e813b06d809c","target":"record","created_at":"2026-05-18T01:47:23Z","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":"248ee34dc118e88e642beb3de21671872a95588049622cc0f45bb2eb82e21b9a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-10-01T04:34:51Z","title_canon_sha256":"4900c37a2cb646ffdd3db9050de621d4808963c2790e59c950e9e7a6364c0c14"},"schema_version":"1.0","source":{"id":"1310.0136","kind":"arxiv","version":1}},"canonical_sha256":"d465f926bb099b24a03a6aa66eb49088e64b5b07b21f37f1578fbb9e8a6d34de","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d465f926bb099b24a03a6aa66eb49088e64b5b07b21f37f1578fbb9e8a6d34de","first_computed_at":"2026-05-18T01:47:23.956934Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:23.956934Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O5mX7FCYH8oNYPEd7kq1ZUmkVc+F5GmE7JtrKXFEc+tMcya5xHlUPIUY7GLtTXv30QeWiHcDl74pveHukA5pBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:23.957493Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.0136","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8bb018c679c4953342f4ba526c363b6d16acec91ac237b21dea4e813b06d809c","sha256:f0b05c9617d809ba3c0c2f72c6ee77b81bae44c4964809c1ced9add2f8961592"],"state_sha256":"d8c4e93b0f7a8f9202091847e3db8d9d2c3884c37b3dc7b84e45f8fb0146e65b"}