{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:T4FV4MLUCMRNIZMTMSLUOYSTZV","short_pith_number":"pith:T4FV4MLU","schema_version":"1.0","canonical_sha256":"9f0b5e31741322d465936497476253cd74c0ead8f343e9482f39e7d7726bc4a3","source":{"kind":"arxiv","id":"1504.00432","version":1},"attestation_state":"computed","paper":{"title":"Binary phase oscillation of two mutually coupled semiconductor lasers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Daisuke Akamatsu, Kenta Takata, Naoto Namekata, Shoko Utsunomiya, Shuichiro Inoue, Yoshihisa Yamamoto","submitted_at":"2015-04-02T02:48:24Z","abstract_excerpt":"A two-site Ising model is implemented as an injection-locked laser network consisting of a single master laser and two mutually coupled slave lasers. We observed ferromagnetic and antiferromagnetic orders in the in-phase and out-of-phase couplings between the two slave lasers. Their phase difference is locked to either 0 or p even if the coupling path is continuously modulated. The system automatically selects the oscillation frequency to satisfy the in-phase or out-of-phase coupling condition, when the mutual coupling dominates over the injection-locking by the master laser."},"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":"1504.00432","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-02T02:48:24Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"1eb2411c89141e450411a92226fa378beed439c657a278560c6d5ea5d021609f","abstract_canon_sha256":"4b5388f641317a87bce6b311aa130c7198b096a95b18470c2b9ef780fd34de20"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:19:43.330118Z","signature_b64":"WE/rdHSan15cR8Z3D/pAl1FLODqaQMnM/D5Lyk+1d9RzvFbzWEa1JLHvVcKxD4wL+N7gitXiOMYGGGPH+EkcDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9f0b5e31741322d465936497476253cd74c0ead8f343e9482f39e7d7726bc4a3","last_reissued_at":"2026-05-18T02:19:43.329675Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:19:43.329675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Binary phase oscillation of two mutually coupled semiconductor lasers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Daisuke Akamatsu, Kenta Takata, Naoto Namekata, Shoko Utsunomiya, Shuichiro Inoue, Yoshihisa Yamamoto","submitted_at":"2015-04-02T02:48:24Z","abstract_excerpt":"A two-site Ising model is implemented as an injection-locked laser network consisting of a single master laser and two mutually coupled slave lasers. We observed ferromagnetic and antiferromagnetic orders in the in-phase and out-of-phase couplings between the two slave lasers. Their phase difference is locked to either 0 or p even if the coupling path is continuously modulated. The system automatically selects the oscillation frequency to satisfy the in-phase or out-of-phase coupling condition, when the mutual coupling dominates over the injection-locking by the master laser."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.00432","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":""},"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":"1504.00432","created_at":"2026-05-18T02:19:43.329736+00:00"},{"alias_kind":"arxiv_version","alias_value":"1504.00432v1","created_at":"2026-05-18T02:19:43.329736+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.00432","created_at":"2026-05-18T02:19:43.329736+00:00"},{"alias_kind":"pith_short_12","alias_value":"T4FV4MLUCMRN","created_at":"2026-05-18T12:29:42.218222+00:00"},{"alias_kind":"pith_short_16","alias_value":"T4FV4MLUCMRNIZMT","created_at":"2026-05-18T12:29:42.218222+00:00"},{"alias_kind":"pith_short_8","alias_value":"T4FV4MLU","created_at":"2026-05-18T12:29:42.218222+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/T4FV4MLUCMRNIZMTMSLUOYSTZV","json":"https://pith.science/pith/T4FV4MLUCMRNIZMTMSLUOYSTZV.json","graph_json":"https://pith.science/api/pith-number/T4FV4MLUCMRNIZMTMSLUOYSTZV/graph.json","events_json":"https://pith.science/api/pith-number/T4FV4MLUCMRNIZMTMSLUOYSTZV/events.json","paper":"https://pith.science/paper/T4FV4MLU"},"agent_actions":{"view_html":"https://pith.science/pith/T4FV4MLUCMRNIZMTMSLUOYSTZV","download_json":"https://pith.science/pith/T4FV4MLUCMRNIZMTMSLUOYSTZV.json","view_paper":"https://pith.science/paper/T4FV4MLU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1504.00432&json=true","fetch_graph":"https://pith.science/api/pith-number/T4FV4MLUCMRNIZMTMSLUOYSTZV/graph.json","fetch_events":"https://pith.science/api/pith-number/T4FV4MLUCMRNIZMTMSLUOYSTZV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/T4FV4MLUCMRNIZMTMSLUOYSTZV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/T4FV4MLUCMRNIZMTMSLUOYSTZV/action/storage_attestation","attest_author":"https://pith.science/pith/T4FV4MLUCMRNIZMTMSLUOYSTZV/action/author_attestation","sign_citation":"https://pith.science/pith/T4FV4MLUCMRNIZMTMSLUOYSTZV/action/citation_signature","submit_replication":"https://pith.science/pith/T4FV4MLUCMRNIZMTMSLUOYSTZV/action/replication_record"}},"created_at":"2026-05-18T02:19:43.329736+00:00","updated_at":"2026-05-18T02:19:43.329736+00:00"}