{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:YLNUWZUMX3PR5MQSUYNQ7RT6VT","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":"3ad0b86e1c47ae470256d6e5b499536d6751923f448c69c41acae0b534985d90","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-07-17T13:04:26Z","title_canon_sha256":"bc5c797fd630cce49c917bd7cd39df675b4cd490b2c0306158fd21bc2bb8c938"},"schema_version":"1.0","source":{"id":"1307.4606","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.4606","created_at":"2026-05-18T03:05:54Z"},{"alias_kind":"arxiv_version","alias_value":"1307.4606v1","created_at":"2026-05-18T03:05:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.4606","created_at":"2026-05-18T03:05:54Z"},{"alias_kind":"pith_short_12","alias_value":"YLNUWZUMX3PR","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"YLNUWZUMX3PR5MQS","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"YLNUWZUM","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:c853b8f3e03d40adbddbe1b9640ae5103fa6c3c8e10069f18d86349857ac334c","target":"graph","created_at":"2026-05-18T03:05:54Z","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 numerically calculate the optical conductivity of twisted graphene bilayers within the continuum model. To obtain the imaginary part, we employ the regularized Kramers-Kronig relation allowing us to discuss arbitrary twist angles, chemical potential and temperature. We find that the Drude weight $D$ as function of the chemical potential $\\mu$ closely follows the shell structure of twisted bilayer displayed by the density of states. For certain angles, this results in a transport gap D=0 at finite $\\mu$. We also discuss the loss function which, for low doping, is characterized by acoustic in","authors_text":"Luis Brey, Pablo San-Jose, Tobias Stauber","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-07-17T13:04:26Z","title":"Optical conductivity, Drude weight and plasmons in twisted graphene bilayers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.4606","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:e21045217d7e77491aa038d349f59e81eeaba06167cce0f0c555d6fc445af61e","target":"record","created_at":"2026-05-18T03:05:54Z","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":"3ad0b86e1c47ae470256d6e5b499536d6751923f448c69c41acae0b534985d90","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-07-17T13:04:26Z","title_canon_sha256":"bc5c797fd630cce49c917bd7cd39df675b4cd490b2c0306158fd21bc2bb8c938"},"schema_version":"1.0","source":{"id":"1307.4606","kind":"arxiv","version":1}},"canonical_sha256":"c2db4b668cbedf1eb212a61b0fc67eaccbd320a1bd1e435b3a008a6dcd35d0d2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c2db4b668cbedf1eb212a61b0fc67eaccbd320a1bd1e435b3a008a6dcd35d0d2","first_computed_at":"2026-05-18T03:05:54.334090Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:05:54.334090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WBZEAE234HnzC6KM7SN1oPsppbQXTcW0pyUxjHh79CZOjrpj2uWwyljDxlvxllWuNGIrNDZIxH2trv+sOwnSCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:05:54.334776Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.4606","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e21045217d7e77491aa038d349f59e81eeaba06167cce0f0c555d6fc445af61e","sha256:c853b8f3e03d40adbddbe1b9640ae5103fa6c3c8e10069f18d86349857ac334c"],"state_sha256":"e25998aaa5d0b50cc0844fa16f02366e5f9800aadcd1f5dda45dc3b1baf6e987"}