{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3HWN7IMYTXVNZBWE63JBQV5I4U","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":"d0df5f586f2be28a7957379cba4f4e2e7c6bc93f90b56fb5fc5bc194efc66d83","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-02-20T21:21:16Z","title_canon_sha256":"470900bb6052974c5277211a46ffc25193466261682ee81db6feaf1f1d5df9d2"},"schema_version":"1.0","source":{"id":"1802.07331","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.07331","created_at":"2026-05-18T00:17:30Z"},{"alias_kind":"arxiv_version","alias_value":"1802.07331v2","created_at":"2026-05-18T00:17:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.07331","created_at":"2026-05-18T00:17:30Z"},{"alias_kind":"pith_short_12","alias_value":"3HWN7IMYTXVN","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"3HWN7IMYTXVNZBWE","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"3HWN7IMY","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:852f11491606ff6f9701d9571aa9e944837c1d8500ceb0e56163df374f62be3f","target":"graph","created_at":"2026-05-18T00:17:30Z","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 report the experimental observation of strongly enhanced tunneling between graphene bilayers through a WSe$_2$ barrier when the graphene bilayers are populated with carriers of opposite polarity and equal density. The enhanced tunneling increases sharply in strength with decreasing temperature, and the tunneling current exhibits a vertical onset as a function of interlayer voltage at a temperature of 1.5 K. The strongly enhanced tunneling at overall neutrality departs markedly from single-particle model calculations that otherwise match the measured tunneling current-voltage characteristics","authors_text":"Allan H. MacDonald, Emanuel Tutuc, G. William Burg, Kenji Watanabe, Kyounghwan Kim, Leonard F. Register, Nitin Prasad, Takashi Taniguchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-02-20T21:21:16Z","title":"Strongly enhanced tunneling at total charge neutrality in double bilayer graphene-WSe$_2$ heterostructures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.07331","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":"sha256:309f0d00536ff5847360afc3dbf0d765ff6c4989ee9560774448627c61a4475b","target":"record","created_at":"2026-05-18T00:17:30Z","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":"d0df5f586f2be28a7957379cba4f4e2e7c6bc93f90b56fb5fc5bc194efc66d83","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-02-20T21:21:16Z","title_canon_sha256":"470900bb6052974c5277211a46ffc25193466261682ee81db6feaf1f1d5df9d2"},"schema_version":"1.0","source":{"id":"1802.07331","kind":"arxiv","version":2}},"canonical_sha256":"d9ecdfa1989deadc86c4f6d21857a8e501367ea3cb122947d510b0aafc84c520","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d9ecdfa1989deadc86c4f6d21857a8e501367ea3cb122947d510b0aafc84c520","first_computed_at":"2026-05-18T00:17:30.419863Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:17:30.419863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RA0Ua3b/mHCAoI3r9bxTSUm/jneFcaeoI1ERNTLCLsMNttPMWD1T4/7KZB6HTa3LUmbHN/kbCpVYadTWTOxsAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:17:30.420527Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.07331","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:309f0d00536ff5847360afc3dbf0d765ff6c4989ee9560774448627c61a4475b","sha256:852f11491606ff6f9701d9571aa9e944837c1d8500ceb0e56163df374f62be3f"],"state_sha256":"273eb40bc275df2ed1325830aa205723a46f43192010c46097177b747dcc24fc"}