{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:C6B5L5DB64C7JF3DV56AAWXVRQ","short_pith_number":"pith:C6B5L5DB","schema_version":"1.0","canonical_sha256":"1783d5f461f705f49763af7c005af58c37a1c97c9ffb872e2abb471b8031d9da","source":{"kind":"arxiv","id":"2608.12553","version":1},"attestation_state":"computed","paper":{"title":"Resonant Far-Infrared Spectroscopy of Flat-Band Fermions in Magic Angle Graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.str-el"],"primary_cat":"cond-mat.mes-hall","authors_text":"Ayelet J. Uzan-Narovlansky, B. Andrei Bernevig, Haosen Guan, Haoyu Hu, Ipsita Das, Jonah Herzog-Arbeitman, Juan F. Mendez Valderrama, Kenji Watanabe, Pengjie Wang, Sanfeng Wu, Takashi Taniguchi, Yue Tang, Zhaoyi Joy Zheng","submitted_at":"2026-08-12T19:44:47Z","abstract_excerpt":"Moir\\'e engineering in twisted two-dimensional (2D) materials radically alters low-energy bands, interactions and topological quantum states. Despite extensive studies, optical spectroscopy of interacting moir\\'e bands in the characteristic far-infrared (FIR) regime has remained largely unexplored due to extreme experimental challenges. Using a newly developed millikelvin FIR platform, we report the observation of the long-sought-after characteristic FIR resonances of flat-band electrons in magic-angle twisted bilayer graphene (MATBG). We observe highly tunable spectroscopic signatures of inte"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2608.12553","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-08-12T19:44:47Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"title_canon_sha256":"121cba7e9c9720c14d2b050c0c2961772b85c69c75b1aab54476ad5feb900093","abstract_canon_sha256":"a6cec2b3aa1cd56f147b3e1d41c0be49b7eb2361a254606db8af24f3b8150899"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-14T00:44:53.509511Z","signature_b64":"EAT8VRm25Y4rdGBXgH8sL8Zys+HWZC4Fw+ndcbUuSNhY25TYfMCBl3tLcVWffqh5RYrSc/ChpvS3g4r7/b6aAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1783d5f461f705f49763af7c005af58c37a1c97c9ffb872e2abb471b8031d9da","last_reissued_at":"2026-08-14T00:44:53.505614Z","signature_status":"signed_v1","first_computed_at":"2026-08-14T00:44:53.505614Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Resonant Far-Infrared Spectroscopy of Flat-Band Fermions in Magic Angle Graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.str-el"],"primary_cat":"cond-mat.mes-hall","authors_text":"Ayelet J. Uzan-Narovlansky, B. Andrei Bernevig, Haosen Guan, Haoyu Hu, Ipsita Das, Jonah Herzog-Arbeitman, Juan F. Mendez Valderrama, Kenji Watanabe, Pengjie Wang, Sanfeng Wu, Takashi Taniguchi, Yue Tang, Zhaoyi Joy Zheng","submitted_at":"2026-08-12T19:44:47Z","abstract_excerpt":"Moir\\'e engineering in twisted two-dimensional (2D) materials radically alters low-energy bands, interactions and topological quantum states. Despite extensive studies, optical spectroscopy of interacting moir\\'e bands in the characteristic far-infrared (FIR) regime has remained largely unexplored due to extreme experimental challenges. Using a newly developed millikelvin FIR platform, we report the observation of the long-sought-after characteristic FIR resonances of flat-band electrons in magic-angle twisted bilayer graphene (MATBG). We observe highly tunable spectroscopic signatures of inte"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.12553","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2608.12553/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2608.12553","created_at":"2026-08-14T00:44:53.507402+00:00"},{"alias_kind":"arxiv_version","alias_value":"2608.12553v1","created_at":"2026-08-14T00:44:53.507402+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.12553","created_at":"2026-08-14T00:44:53.507402+00:00"},{"alias_kind":"pith_short_12","alias_value":"C6B5L5DB64C7","created_at":"2026-08-14T00:44:53.507402+00:00"},{"alias_kind":"pith_short_16","alias_value":"C6B5L5DB64C7JF3D","created_at":"2026-08-14T00:44:53.507402+00:00"},{"alias_kind":"pith_short_8","alias_value":"C6B5L5DB","created_at":"2026-08-14T00:44:53.507402+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/C6B5L5DB64C7JF3DV56AAWXVRQ","json":"https://pith.science/pith/C6B5L5DB64C7JF3DV56AAWXVRQ.json","graph_json":"https://pith.science/api/pith-number/C6B5L5DB64C7JF3DV56AAWXVRQ/graph.json","events_json":"https://pith.science/api/pith-number/C6B5L5DB64C7JF3DV56AAWXVRQ/events.json","paper":"https://pith.science/paper/C6B5L5DB"},"agent_actions":{"view_html":"https://pith.science/pith/C6B5L5DB64C7JF3DV56AAWXVRQ","download_json":"https://pith.science/pith/C6B5L5DB64C7JF3DV56AAWXVRQ.json","view_paper":"https://pith.science/paper/C6B5L5DB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2608.12553&json=true","fetch_graph":"https://pith.science/api/pith-number/C6B5L5DB64C7JF3DV56AAWXVRQ/graph.json","fetch_events":"https://pith.science/api/pith-number/C6B5L5DB64C7JF3DV56AAWXVRQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/C6B5L5DB64C7JF3DV56AAWXVRQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/C6B5L5DB64C7JF3DV56AAWXVRQ/action/storage_attestation","attest_author":"https://pith.science/pith/C6B5L5DB64C7JF3DV56AAWXVRQ/action/author_attestation","sign_citation":"https://pith.science/pith/C6B5L5DB64C7JF3DV56AAWXVRQ/action/citation_signature","submit_replication":"https://pith.science/pith/C6B5L5DB64C7JF3DV56AAWXVRQ/action/replication_record"}},"created_at":"2026-08-14T00:44:53.507402+00:00","updated_at":"2026-08-14T00:44:53.507402+00:00"}