{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:VD6F2PMTOGMVYV2HB762ADUJIU","short_pith_number":"pith:VD6F2PMT","schema_version":"1.0","canonical_sha256":"a8fc5d3d9371995c57470ffda00e89451d390dfae841b094b74a4ec84d199f83","source":{"kind":"arxiv","id":"0710.1309","version":2},"attestation_state":"computed","paper":{"title":"Correspondence between Andreev reflection and Klein tunneling in bipolar graphene","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A.R. Akhmerov, C.W.J. Beenakker, J. Tworzydlo, P. Recher","submitted_at":"2007-10-05T20:42:50Z","abstract_excerpt":"Andreev reflection at a superconductor and Klein tunneling through an n-p junction in graphene are two processes that couple electrons to holes -- the former through the superconducting pair potential Delta and the latter through the electrostatic potential U. We derive that the energy spectra in the two systems are identical, at low energies E<<Delta and for an antisymmetric potential profile U(-x,y)=-U(x,y). This correspondence implies that bipolar junctions in graphene may have zero density of states at the Fermi level and carry a current in equilibrium, analogously to superconducting Josep"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0710.1309","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-10-05T20:42:50Z","cross_cats_sorted":[],"title_canon_sha256":"1b236d0fd8b85ec713c945ba16c9ac981affb5c984009c1cf32f19eb65be7bc2","abstract_canon_sha256":"4a039d18bcb5a9cbb109b060e6eb84d9434600e04d9b34005acb9b6e241fc923"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:19:12.169072Z","signature_b64":"c1Os1UHWTola9ib7KaGvVq1JItwayM2vfg9M/Dw94tKF1IsxiV575I1eOa+4Yfu/BiMP2cxKSWJTEl98fJKFDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a8fc5d3d9371995c57470ffda00e89451d390dfae841b094b74a4ec84d199f83","last_reissued_at":"2026-05-18T03:19:12.168641Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:19:12.168641Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Correspondence between Andreev reflection and Klein tunneling in bipolar graphene","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A.R. Akhmerov, C.W.J. Beenakker, J. Tworzydlo, P. Recher","submitted_at":"2007-10-05T20:42:50Z","abstract_excerpt":"Andreev reflection at a superconductor and Klein tunneling through an n-p junction in graphene are two processes that couple electrons to holes -- the former through the superconducting pair potential Delta and the latter through the electrostatic potential U. We derive that the energy spectra in the two systems are identical, at low energies E<<Delta and for an antisymmetric potential profile U(-x,y)=-U(x,y). This correspondence implies that bipolar junctions in graphene may have zero density of states at the Fermi level and carry a current in equilibrium, analogously to superconducting Josep"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0710.1309","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"0710.1309","created_at":"2026-05-18T03:19:12.168707+00:00"},{"alias_kind":"arxiv_version","alias_value":"0710.1309v2","created_at":"2026-05-18T03:19:12.168707+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0710.1309","created_at":"2026-05-18T03:19:12.168707+00:00"},{"alias_kind":"pith_short_12","alias_value":"VD6F2PMTOGMV","created_at":"2026-05-18T12:25:56.245647+00:00"},{"alias_kind":"pith_short_16","alias_value":"VD6F2PMTOGMVYV2H","created_at":"2026-05-18T12:25:56.245647+00:00"},{"alias_kind":"pith_short_8","alias_value":"VD6F2PMT","created_at":"2026-05-18T12:25:56.245647+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/VD6F2PMTOGMVYV2HB762ADUJIU","json":"https://pith.science/pith/VD6F2PMTOGMVYV2HB762ADUJIU.json","graph_json":"https://pith.science/api/pith-number/VD6F2PMTOGMVYV2HB762ADUJIU/graph.json","events_json":"https://pith.science/api/pith-number/VD6F2PMTOGMVYV2HB762ADUJIU/events.json","paper":"https://pith.science/paper/VD6F2PMT"},"agent_actions":{"view_html":"https://pith.science/pith/VD6F2PMTOGMVYV2HB762ADUJIU","download_json":"https://pith.science/pith/VD6F2PMTOGMVYV2HB762ADUJIU.json","view_paper":"https://pith.science/paper/VD6F2PMT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0710.1309&json=true","fetch_graph":"https://pith.science/api/pith-number/VD6F2PMTOGMVYV2HB762ADUJIU/graph.json","fetch_events":"https://pith.science/api/pith-number/VD6F2PMTOGMVYV2HB762ADUJIU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VD6F2PMTOGMVYV2HB762ADUJIU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VD6F2PMTOGMVYV2HB762ADUJIU/action/storage_attestation","attest_author":"https://pith.science/pith/VD6F2PMTOGMVYV2HB762ADUJIU/action/author_attestation","sign_citation":"https://pith.science/pith/VD6F2PMTOGMVYV2HB762ADUJIU/action/citation_signature","submit_replication":"https://pith.science/pith/VD6F2PMTOGMVYV2HB762ADUJIU/action/replication_record"}},"created_at":"2026-05-18T03:19:12.168707+00:00","updated_at":"2026-05-18T03:19:12.168707+00:00"}