{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:7BV6DSRIY6K3KJG2TLIEEQ2ZQS","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":"08c82c732b32f5be685e02ccd4c7341ea2cdebf554bca83519c3678c2680e133","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-12-29T23:03:39Z","title_canon_sha256":"3d6beef825554c523fdc16c208c640ca3a431fee2177c0de7117e69949b8c662"},"schema_version":"1.0","source":{"id":"1312.7601","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.7601","created_at":"2026-05-18T02:37:44Z"},{"alias_kind":"arxiv_version","alias_value":"1312.7601v2","created_at":"2026-05-18T02:37:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.7601","created_at":"2026-05-18T02:37:44Z"},{"alias_kind":"pith_short_12","alias_value":"7BV6DSRIY6K3","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"7BV6DSRIY6K3KJG2","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"7BV6DSRI","created_at":"2026-05-18T12:27:36Z"}],"graph_snapshots":[{"event_id":"sha256:dd7dd120fb1e70915bf5db54e30a132311da01bfc1dadd24866cc46b1bb4944f","target":"graph","created_at":"2026-05-18T02:37:44Z","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":"Ballistic transport through an impurity-free section of the Corbino disk in graphene is investigated by means of the Landauer-B\\\"{u}ttiker formalism in the mesoscopic limit. In the linear-responce regime the conductance is quantized in steps close to integer multiples of $4e^{2}/h$, yet Fabry-Perot oscillations are strongly suppressed. The quantization arises for small opening angles $\\theta\\lesssim\\pi/3$ and large radii ratios $R_2/R_1\\gtrsim{}10$. We find that the condition for emergence of the $n$-th conductance step can be written as $\\sqrt{n}\\theta/\\pi\\ll{}1$. A brief comparison with the ","authors_text":"Adam Rycerz, Grzegorz Rut","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-12-29T23:03:39Z","title":"Conditions for Conductance Quantization in Mesoscopic Dirac Systems on the Examples of Graphene Nanoconstrictions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.7601","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":"sha256:2ab92e1f26b497a6902e1a60d2e6f0926c6337862fefed6c5eb61b16d4dd489a","target":"record","created_at":"2026-05-18T02:37:44Z","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":"08c82c732b32f5be685e02ccd4c7341ea2cdebf554bca83519c3678c2680e133","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-12-29T23:03:39Z","title_canon_sha256":"3d6beef825554c523fdc16c208c640ca3a431fee2177c0de7117e69949b8c662"},"schema_version":"1.0","source":{"id":"1312.7601","kind":"arxiv","version":2}},"canonical_sha256":"f86be1ca28c795b524da9ad042435984ba76cbc5db5a9889f139262cba2db5af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f86be1ca28c795b524da9ad042435984ba76cbc5db5a9889f139262cba2db5af","first_computed_at":"2026-05-18T02:37:44.701423Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:37:44.701423Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g0Q+8t8r9Jh8kFLf8fKfcz13N62TrUwF0z32PdkO7ct7D5PIIMpGFT5AossGYAbb2qjq8IU1887HZq69mtMLCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:37:44.701885Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.7601","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2ab92e1f26b497a6902e1a60d2e6f0926c6337862fefed6c5eb61b16d4dd489a","sha256:dd7dd120fb1e70915bf5db54e30a132311da01bfc1dadd24866cc46b1bb4944f"],"state_sha256":"446883a2bc516a1e3c55bc7d998a14fa124424c7dabc98df208f49bfd4429c67"}