{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:LKZT5ESYCSHHA3JVS3K5IIDVTB","short_pith_number":"pith:LKZT5ESY","schema_version":"1.0","canonical_sha256":"5ab33e9258148e706d3596d5d42075987c5eb5a3d39f9dc76b8259dda3518b8f","source":{"kind":"arxiv","id":"1906.06605","version":1},"attestation_state":"computed","paper":{"title":"Non-linear second-order topological insulators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Farzad Zangeneh-Nejad, Romain Fleury","submitted_at":"2019-06-15T19:02:41Z","abstract_excerpt":"We demonstrate, both theoretically and experimentally, the concept of non-linear second-order topological insulators, a class of bulk insulators with quantized Wannier centers and a bulk polarization directly controlled by the level of non-linearity. We show that one-dimensional edge states and zero-dimensional corner states can be induced in a trivial crystal insulator made of evanescently coupled resonators with linear and nonlinear coupling coefficients, simply by tuning the excitation intensity. This allows global external control over topological phase transitions and switching to a phase"},"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":"1906.06605","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-06-15T19:02:41Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"68f61e4dc9407fefdca88f4f89a4cdbaa801a44dc7d408a2fc1b87f8f44aa09b","abstract_canon_sha256":"732ba3c672697e295a1ef44a2b0a4bd9b1657f629379f1628dc49e651d5e9ec1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:52:00.031490Z","signature_b64":"cigwPXZZWnsUvtD9ajQo0pMEK0F6A7fnGmYHn/AzNUTRXONw7YSxYFcq/8RVA+zmbLsnK081aoBISyk3/DcbDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ab33e9258148e706d3596d5d42075987c5eb5a3d39f9dc76b8259dda3518b8f","last_reissued_at":"2026-07-04T23:52:00.031062Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:52:00.031062Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Non-linear second-order topological insulators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Farzad Zangeneh-Nejad, Romain Fleury","submitted_at":"2019-06-15T19:02:41Z","abstract_excerpt":"We demonstrate, both theoretically and experimentally, the concept of non-linear second-order topological insulators, a class of bulk insulators with quantized Wannier centers and a bulk polarization directly controlled by the level of non-linearity. We show that one-dimensional edge states and zero-dimensional corner states can be induced in a trivial crystal insulator made of evanescently coupled resonators with linear and nonlinear coupling coefficients, simply by tuning the excitation intensity. This allows global external control over topological phase transitions and switching to a phase"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.06605","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1906.06605/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"1906.06605","created_at":"2026-07-04T23:52:00.031115+00:00"},{"alias_kind":"arxiv_version","alias_value":"1906.06605v1","created_at":"2026-07-04T23:52:00.031115+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.06605","created_at":"2026-07-04T23:52:00.031115+00:00"},{"alias_kind":"pith_short_12","alias_value":"LKZT5ESYCSHH","created_at":"2026-07-04T23:52:00.031115+00:00"},{"alias_kind":"pith_short_16","alias_value":"LKZT5ESYCSHHA3JV","created_at":"2026-07-04T23:52:00.031115+00:00"},{"alias_kind":"pith_short_8","alias_value":"LKZT5ESY","created_at":"2026-07-04T23:52:00.031115+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/LKZT5ESYCSHHA3JVS3K5IIDVTB","json":"https://pith.science/pith/LKZT5ESYCSHHA3JVS3K5IIDVTB.json","graph_json":"https://pith.science/api/pith-number/LKZT5ESYCSHHA3JVS3K5IIDVTB/graph.json","events_json":"https://pith.science/api/pith-number/LKZT5ESYCSHHA3JVS3K5IIDVTB/events.json","paper":"https://pith.science/paper/LKZT5ESY"},"agent_actions":{"view_html":"https://pith.science/pith/LKZT5ESYCSHHA3JVS3K5IIDVTB","download_json":"https://pith.science/pith/LKZT5ESYCSHHA3JVS3K5IIDVTB.json","view_paper":"https://pith.science/paper/LKZT5ESY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1906.06605&json=true","fetch_graph":"https://pith.science/api/pith-number/LKZT5ESYCSHHA3JVS3K5IIDVTB/graph.json","fetch_events":"https://pith.science/api/pith-number/LKZT5ESYCSHHA3JVS3K5IIDVTB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LKZT5ESYCSHHA3JVS3K5IIDVTB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LKZT5ESYCSHHA3JVS3K5IIDVTB/action/storage_attestation","attest_author":"https://pith.science/pith/LKZT5ESYCSHHA3JVS3K5IIDVTB/action/author_attestation","sign_citation":"https://pith.science/pith/LKZT5ESYCSHHA3JVS3K5IIDVTB/action/citation_signature","submit_replication":"https://pith.science/pith/LKZT5ESYCSHHA3JVS3K5IIDVTB/action/replication_record"}},"created_at":"2026-07-04T23:52:00.031115+00:00","updated_at":"2026-07-04T23:52:00.031115+00:00"}