{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:KLRD33EMBDRQLLFHTGMLQS5UYO","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":"dd985536cd59155ce139bdf14c81bfabbe69c4c3203670f4e2f51cefaa45f8d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-08-05T00:49:46Z","title_canon_sha256":"0ac8d036f3e7b7a662727f959bc900936b6c17cc2ccde57aa244ffb558046dc8"},"schema_version":"1.0","source":{"id":"1608.01730","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.01730","created_at":"2026-05-18T00:51:07Z"},{"alias_kind":"arxiv_version","alias_value":"1608.01730v2","created_at":"2026-05-18T00:51:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.01730","created_at":"2026-05-18T00:51:07Z"},{"alias_kind":"pith_short_12","alias_value":"KLRD33EMBDRQ","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"KLRD33EMBDRQLLFH","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"KLRD33EM","created_at":"2026-05-18T12:30:25Z"}],"graph_snapshots":[{"event_id":"sha256:2f79de4111ab7be27daa708367b9d1f1999aa744dbceb02a0ea757c2c64cf8e0","target":"graph","created_at":"2026-05-18T00:51:07Z","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 put forward a concept to create highly collimated, non-dispersive electron beams in pseudo-relativistic Dirac materials such as graphene or topological insulator surfaces. Combining negative refraction and Klein collimation at a parabolic pn junction, the proposed lens generates beams, as narrow as the focal length, that stay focused over scales of several microns and can be steered by a magnetic field without losing collimation. We demonstrate the lens capabilities by applying it to two paradigmatic settings of graphene electron optics: We propose a setup for observing high-resolution angl","authors_text":"Cosimo Gorini, Klaus Richter, Ming-Hao Liu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-08-05T00:49:46Z","title":"Creating and Steering Highly Directional Electron Beams in Graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.01730","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":"sha256:37a73c74ac0f02cd9554b782c0f60940eb69adc90357361fc6655402682d1458","target":"record","created_at":"2026-05-18T00:51:07Z","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":"dd985536cd59155ce139bdf14c81bfabbe69c4c3203670f4e2f51cefaa45f8d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-08-05T00:49:46Z","title_canon_sha256":"0ac8d036f3e7b7a662727f959bc900936b6c17cc2ccde57aa244ffb558046dc8"},"schema_version":"1.0","source":{"id":"1608.01730","kind":"arxiv","version":2}},"canonical_sha256":"52e23dec8c08e305aca79998b84bb4c38a12aa07af8a539d2724466e000e24cf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"52e23dec8c08e305aca79998b84bb4c38a12aa07af8a539d2724466e000e24cf","first_computed_at":"2026-05-18T00:51:07.187628Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:07.187628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VJXQ4P2aqPwZSNkiiIPE8pfT+WI0QQeSY5TRMRvJ3R0sDRVrVYZSgCQ35tTCQRo+/qyWTzZwiqtKjm0IGJyUDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:07.188020Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.01730","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:37a73c74ac0f02cd9554b782c0f60940eb69adc90357361fc6655402682d1458","sha256:2f79de4111ab7be27daa708367b9d1f1999aa744dbceb02a0ea757c2c64cf8e0"],"state_sha256":"27425236847b509ba335f3e792d7ea720045b17d751751b62ec548dca5337f7c"}