{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:Z37Z72MXYBYGW35DZKQFOSG5VA","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":"a038c57fcec8cc1f91b81e47dc87d7bc9657c56191f78fbab7af40e068b6f18e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-05-10T19:41:06Z","title_canon_sha256":"9f717e616c4f0726e561ceae4274950f456343bda685c8210d8b77453a8c2db7"},"schema_version":"1.0","source":{"id":"1205.2361","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.2361","created_at":"2026-05-18T03:49:19Z"},{"alias_kind":"arxiv_version","alias_value":"1205.2361v2","created_at":"2026-05-18T03:49:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.2361","created_at":"2026-05-18T03:49:19Z"},{"alias_kind":"pith_short_12","alias_value":"Z37Z72MXYBYG","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"Z37Z72MXYBYGW35D","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"Z37Z72MX","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:7b8ebc6d2b7dc63787487c69220f33cf70bba9c30e3a1c96d87ef5eaca6ebe87","target":"graph","created_at":"2026-05-18T03:49:19Z","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 study the influence of different kinds of gaps in a quasiparticle spectrum on longitudinal and transverse optical conductivities of bilayer graphene. An exact analytical expression for magneto-optical conductivity is derived using a low-energy two-band Hamiltonian. We consider how the layer asymmetry gap caused by a bias electric field and a time-reversal symmetry breaking gap affect the absorption lines. The limit of zero magnetic field is then analyzed for an arbitrary carrier density in the two-band model. For a neutral bilayer graphene, the optical Hall and longitudinal conductivities a","authors_text":"A. B. Kuzmenko, E. V. Gorbar, S. G. Sharapov, V. P. Gusynin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-05-10T19:41:06Z","title":"Magneto-optical and optical probes of gapped ground states of bilayer graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.2361","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":"sha256:8c4b50bbbf90692a9abf20711a6e0ededb3f89d72c26ee5badbcf1c34bd58d48","target":"record","created_at":"2026-05-18T03:49:19Z","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":"a038c57fcec8cc1f91b81e47dc87d7bc9657c56191f78fbab7af40e068b6f18e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-05-10T19:41:06Z","title_canon_sha256":"9f717e616c4f0726e561ceae4274950f456343bda685c8210d8b77453a8c2db7"},"schema_version":"1.0","source":{"id":"1205.2361","kind":"arxiv","version":2}},"canonical_sha256":"ceff9fe997c0706b6fa3caa05748dda828334fab8b5ae22bf7f01bf8728cb898","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ceff9fe997c0706b6fa3caa05748dda828334fab8b5ae22bf7f01bf8728cb898","first_computed_at":"2026-05-18T03:49:19.643180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:49:19.643180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rZWi9/IRaE9w9/0hLlC7BsMIFiZCgrTAbbcTHoTex9Z0IyqFQ/tSxFCkRW/+WluoIefi1CaU1ps5yfFHErUECQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:49:19.643918Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.2361","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c4b50bbbf90692a9abf20711a6e0ededb3f89d72c26ee5badbcf1c34bd58d48","sha256:7b8ebc6d2b7dc63787487c69220f33cf70bba9c30e3a1c96d87ef5eaca6ebe87"],"state_sha256":"2c7f370fb2fb7edd8cd04bac8117617130e1c17051003a1ee44d67a82a2a3c59"}