{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:FYJ642UBIJDNMYOXDUQ7YIWVCD","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":"3e1279a0bbfe160820987ce08dd0aa82b8cd58407dc1acaa8e5c6143af6bc9eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-07-28T19:55:04Z","title_canon_sha256":"8512fdcc1ae74fdc15553efe62173f390cd1034bbed6468a31b8e94c118f7acb"},"schema_version":"1.0","source":{"id":"1407.7519","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.7519","created_at":"2026-05-18T02:25:26Z"},{"alias_kind":"arxiv_version","alias_value":"1407.7519v2","created_at":"2026-05-18T02:25:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.7519","created_at":"2026-05-18T02:25:26Z"},{"alias_kind":"pith_short_12","alias_value":"FYJ642UBIJDN","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FYJ642UBIJDNMYOX","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FYJ642UB","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:6e8787c6ad2b56b0d9ac00e1055d9a5023e00fd7c65c4ec93cec0bf3d3444ddd","target":"graph","created_at":"2026-05-18T02:25:26Z","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":"Majorana fermion (MF) excitations in solid state system have non-Abelian statistics which is essential for topological quantum computation. Previous proposals to realize MF, however, generally requires fine-tuning of parameters. Here we explore a platform which avoids the fine-tuning problem, namely a ferromagnetic chain deposited on the surface of a spin-orbit coupled $s$-wave superconductor. We show that it generically supports zero-energy topological MF excitations near the two ends of the chain with minimal fine-tuning. Depending on the strength of the ferromagnetic moment in the chain, th","authors_text":"Hoi-Yin Hui, Jay D. Sau, P. M. R. Brydon, S. Das Sarma, S. Tewari","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-07-28T19:55:04Z","title":"Majorana fermions in ferromagnetic chains on the surface of bulk spin-orbit coupled $s$-wave superconductors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.7519","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:effa7d1dde87b5f13be50ee08b2e07d4d8a87b0c6048432fbc40e365558fc801","target":"record","created_at":"2026-05-18T02:25:26Z","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":"3e1279a0bbfe160820987ce08dd0aa82b8cd58407dc1acaa8e5c6143af6bc9eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-07-28T19:55:04Z","title_canon_sha256":"8512fdcc1ae74fdc15553efe62173f390cd1034bbed6468a31b8e94c118f7acb"},"schema_version":"1.0","source":{"id":"1407.7519","kind":"arxiv","version":2}},"canonical_sha256":"2e13ee6a814246d661d71d21fc22d510cf63f72622ec9559615ce012b338e674","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2e13ee6a814246d661d71d21fc22d510cf63f72622ec9559615ce012b338e674","first_computed_at":"2026-05-18T02:25:26.399180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:25:26.399180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qzV5Jd9PETk5QbSeJ/sZ8ssKzE4NgD++tRSpUnWT6s+aqqawcJHZYiKMOQ2rmghlvxoZn9YqRqUXA11MyPLnBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:25:26.399629Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.7519","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:effa7d1dde87b5f13be50ee08b2e07d4d8a87b0c6048432fbc40e365558fc801","sha256:6e8787c6ad2b56b0d9ac00e1055d9a5023e00fd7c65c4ec93cec0bf3d3444ddd"],"state_sha256":"fa157ef469cf9d4c488eb12153c88343f76971614fd5979f40fe7783b7aa54e7"}