{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:KSVBW3F5L2V6HALHTW7K6NBWN7","short_pith_number":"pith:KSVBW3F5","schema_version":"1.0","canonical_sha256":"54aa1b6cbd5eabe381679dbeaf34366fdd60312918f939eeb10433be0992c6bb","source":{"kind":"arxiv","id":"1601.06154","version":2},"attestation_state":"computed","paper":{"title":"Half vortex and fractional electrical charge in two dimensions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el","hep-th"],"primary_cat":"cond-mat.mes-hall","authors_text":"Bitan Roy, Igor F. Herbut","submitted_at":"2016-01-22T20:59:16Z","abstract_excerpt":"Despite fermion doubling, a two-dimensional quasi-relativistic spin-1/2 system can still lead to true fractionalization of electrical charge, when a massive ordered phase supports a \"half-vortex\". Such topological defect is possible when the order parameter in form of Dirac mass is described by two $U(1)$ angles, and each of them winds by an angle $\\pi$ around a point. We demonstrate that such a mass configuration in an eight-dimensional Dirac Hamiltonian exhibits only a single bound zero mode, and therefore binds the charge of $e/2$. In graphene, for example, such an ordered phase is provided"},"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":"1601.06154","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-01-22T20:59:16Z","cross_cats_sorted":["cond-mat.str-el","hep-th"],"title_canon_sha256":"15df0ce7e89fc050770e05c1fee4b5732f75aebdc105ff826a84594cc91e80cf","abstract_canon_sha256":"cb7d2f0a22de6490a1dcae26706cff1b008916a718d8a5942385495daba9ca30"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:17:17.680007Z","signature_b64":"5PU79nF5m9Ts9xicZT5oifDWCnzwpt1e8J2ZOAnneu0jDi23aI/NmlE76WIUWaNbAOo9LARlqSP8Y41ArsN7Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"54aa1b6cbd5eabe381679dbeaf34366fdd60312918f939eeb10433be0992c6bb","last_reissued_at":"2026-05-18T01:17:17.679471Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:17:17.679471Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Half vortex and fractional electrical charge in two dimensions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el","hep-th"],"primary_cat":"cond-mat.mes-hall","authors_text":"Bitan Roy, Igor F. Herbut","submitted_at":"2016-01-22T20:59:16Z","abstract_excerpt":"Despite fermion doubling, a two-dimensional quasi-relativistic spin-1/2 system can still lead to true fractionalization of electrical charge, when a massive ordered phase supports a \"half-vortex\". Such topological defect is possible when the order parameter in form of Dirac mass is described by two $U(1)$ angles, and each of them winds by an angle $\\pi$ around a point. We demonstrate that such a mass configuration in an eight-dimensional Dirac Hamiltonian exhibits only a single bound zero mode, and therefore binds the charge of $e/2$. In graphene, for example, such an ordered phase is provided"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.06154","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":"1601.06154","created_at":"2026-05-18T01:17:17.679548+00:00"},{"alias_kind":"arxiv_version","alias_value":"1601.06154v2","created_at":"2026-05-18T01:17:17.679548+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.06154","created_at":"2026-05-18T01:17:17.679548+00:00"},{"alias_kind":"pith_short_12","alias_value":"KSVBW3F5L2V6","created_at":"2026-05-18T12:30:29.479603+00:00"},{"alias_kind":"pith_short_16","alias_value":"KSVBW3F5L2V6HALH","created_at":"2026-05-18T12:30:29.479603+00:00"},{"alias_kind":"pith_short_8","alias_value":"KSVBW3F5","created_at":"2026-05-18T12:30:29.479603+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/KSVBW3F5L2V6HALHTW7K6NBWN7","json":"https://pith.science/pith/KSVBW3F5L2V6HALHTW7K6NBWN7.json","graph_json":"https://pith.science/api/pith-number/KSVBW3F5L2V6HALHTW7K6NBWN7/graph.json","events_json":"https://pith.science/api/pith-number/KSVBW3F5L2V6HALHTW7K6NBWN7/events.json","paper":"https://pith.science/paper/KSVBW3F5"},"agent_actions":{"view_html":"https://pith.science/pith/KSVBW3F5L2V6HALHTW7K6NBWN7","download_json":"https://pith.science/pith/KSVBW3F5L2V6HALHTW7K6NBWN7.json","view_paper":"https://pith.science/paper/KSVBW3F5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1601.06154&json=true","fetch_graph":"https://pith.science/api/pith-number/KSVBW3F5L2V6HALHTW7K6NBWN7/graph.json","fetch_events":"https://pith.science/api/pith-number/KSVBW3F5L2V6HALHTW7K6NBWN7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KSVBW3F5L2V6HALHTW7K6NBWN7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KSVBW3F5L2V6HALHTW7K6NBWN7/action/storage_attestation","attest_author":"https://pith.science/pith/KSVBW3F5L2V6HALHTW7K6NBWN7/action/author_attestation","sign_citation":"https://pith.science/pith/KSVBW3F5L2V6HALHTW7K6NBWN7/action/citation_signature","submit_replication":"https://pith.science/pith/KSVBW3F5L2V6HALHTW7K6NBWN7/action/replication_record"}},"created_at":"2026-05-18T01:17:17.679548+00:00","updated_at":"2026-05-18T01:17:17.679548+00:00"}