{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:7YBA4L7U5PWWX46ROY7HGPRCN6","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":"1ad2dec2107684b768eb8d6b85fbc4de87a7cf3711305900282b143da8df3230","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-09-08T15:19:26Z","title_canon_sha256":"392ed85d8f90996182482a2ebeeb25cad5baa88fbb94ed7c2f094dddc5c4dd41"},"schema_version":"1.0","source":{"id":"1709.02740","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.02740","created_at":"2026-05-18T00:30:41Z"},{"alias_kind":"arxiv_version","alias_value":"1709.02740v2","created_at":"2026-05-18T00:30:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.02740","created_at":"2026-05-18T00:30:41Z"},{"alias_kind":"pith_short_12","alias_value":"7YBA4L7U5PWW","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"7YBA4L7U5PWWX46R","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"7YBA4L7U","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:dfdd2bc90832d42557d20fcd489476e24cb1f57a6a4d2d6c2fbba57ba58134e4","target":"graph","created_at":"2026-05-18T00:30:41Z","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":"$\\mathbb{Z}_4$ parafermions can be realized in a strongly interacting quantum spin Hall Josephson junction or in a spin Hall Josephson junction strongly coupled to an impurity spin. In this paper we study a system that has both features, but with weak (repulsive) interactions and a weakly coupled spin. We show that for a strongly anisotropic exchange interaction, at low temperatures the system enters a strong coupling limit in which it hosts two $\\mathbb{Z}_4$ parafermions, characterizing a fourfold degeneracy of the ground state. We construct the parafermion operators explicitly, and show tha","authors_text":"Felix von Oppen, Piet W. Brouwer, Yuval Vinkler-Aviv","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-09-08T15:19:26Z","title":"$\\mathbb{Z}_4$ Parafermions in an interacting quantum spin Hall Josephson junction coupled to an impurity spin"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.02740","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:d5281c264440023b9bfcd6bb03adbefcb974c5c6872fd41e8c0270acde719260","target":"record","created_at":"2026-05-18T00:30:41Z","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":"1ad2dec2107684b768eb8d6b85fbc4de87a7cf3711305900282b143da8df3230","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-09-08T15:19:26Z","title_canon_sha256":"392ed85d8f90996182482a2ebeeb25cad5baa88fbb94ed7c2f094dddc5c4dd41"},"schema_version":"1.0","source":{"id":"1709.02740","kind":"arxiv","version":2}},"canonical_sha256":"fe020e2ff4ebed6bf3d1763e733e226faa9fa9dbb0ff61bd33615e161b73d5db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe020e2ff4ebed6bf3d1763e733e226faa9fa9dbb0ff61bd33615e161b73d5db","first_computed_at":"2026-05-18T00:30:41.478647Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:30:41.478647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AWPn94ts6bx7wzHv3VmrI/4h9na8e73Mu5v61REZk1swnIKDoz84ThiTXSPsogDZdEiM1O+3EiAn/+QibhUzDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:30:41.479032Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.02740","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d5281c264440023b9bfcd6bb03adbefcb974c5c6872fd41e8c0270acde719260","sha256:dfdd2bc90832d42557d20fcd489476e24cb1f57a6a4d2d6c2fbba57ba58134e4"],"state_sha256":"cc3a56920ee1fd75a6b71e6d810ec9ecea6000e4d5d549a4666c62c82c7e7690"}