{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:NKQK3VRXUY2ELZOQLA6453TXAB","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":"14574780f91d62bee9245fa95e297bff1450bd2ffbb029315a748603430c8c5f","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-02-10T01:40:10Z","title_canon_sha256":"df30323262a26cb41ce988d23eb7c408384a71d9fcb731b90666d6bcf7154f16"},"schema_version":"1.0","source":{"id":"1702.03035","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.03035","created_at":"2026-05-18T00:44:23Z"},{"alias_kind":"arxiv_version","alias_value":"1702.03035v1","created_at":"2026-05-18T00:44:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.03035","created_at":"2026-05-18T00:44:23Z"},{"alias_kind":"pith_short_12","alias_value":"NKQK3VRXUY2E","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"NKQK3VRXUY2ELZOQ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"NKQK3VRX","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:92dd51b315b1f60720d7764fb405f519eede141d52560c6020b3637aef63df77","target":"graph","created_at":"2026-05-18T00:44:23Z","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":"Massless Dirac fermions in graphene provide unprecedented opportunities to realize the Klein paradox, which is one of the most exotic and striking properties of relativistic particles. In the seminal theoretical work [Katsnelson et al., Nat. Phys. 2 620 (2006)], it was predicted that the massless Dirac fermions can pass through one-dimensional (1D) potential barriers unimpededly at normal incidence. Such a result seems to preclude confinement of the massless Dirac fermions in graphene by using 1D potential barriers. Here, we demonstrate, both experimentally and theoretically, that massless Dir","authors_text":"Haiwen Liu, Hua Jiang, Jia-Bin Qiao, Ke-Ke Bai, Lin He","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-02-10T01:40:10Z","title":"Massless Dirac Fermions Trapping in a Quasi-one-dimensional npn Junction of a Continuous Graphene Monolayer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.03035","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:daeafd8e5e0c323cb94efe0f9c4d60de33496b5f5b144062b1200f9170292215","target":"record","created_at":"2026-05-18T00:44:23Z","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":"14574780f91d62bee9245fa95e297bff1450bd2ffbb029315a748603430c8c5f","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-02-10T01:40:10Z","title_canon_sha256":"df30323262a26cb41ce988d23eb7c408384a71d9fcb731b90666d6bcf7154f16"},"schema_version":"1.0","source":{"id":"1702.03035","kind":"arxiv","version":1}},"canonical_sha256":"6aa0add637a63445e5d0583dceee7700534eecfd20388d2320210359165eeba3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6aa0add637a63445e5d0583dceee7700534eecfd20388d2320210359165eeba3","first_computed_at":"2026-05-18T00:44:23.586934Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:44:23.586934Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NxbWZuBzkI5yv62BwjJeQssRBolkRKiCONrwWr/aDoJguNra21dW57t8b41M992084eFOHpQlU6jCh1080WRBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:44:23.587413Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.03035","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:daeafd8e5e0c323cb94efe0f9c4d60de33496b5f5b144062b1200f9170292215","sha256:92dd51b315b1f60720d7764fb405f519eede141d52560c6020b3637aef63df77"],"state_sha256":"eaa0378dbbe4d3227fcc4687570850f82fd996755ed3195c21a4d29309b9c379"}