{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:GYJVLQ4J6PDTETTECCVWQFVT36","short_pith_number":"pith:GYJVLQ4J","schema_version":"1.0","canonical_sha256":"361355c389f3c7324e6410ab6816b3df8e154a757bfaebceb9d9b445d2ead285","source":{"kind":"arxiv","id":"1701.05333","version":1},"attestation_state":"computed","paper":{"title":"Higher Order Mode Entanglement in a Type II Optical Parametric Oscillator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chunxiao Cai, Hengxin Sun, Jiangrui Gao, Jun Guo, Kui Liu, Long Ma","submitted_at":"2017-01-19T08:49:23Z","abstract_excerpt":"Nonclassical beams in high order spatial modes have attracted much interest but they exhibit much less squeezing and entanglement than the fundamental spatial modes, limiting their applications. We experimentally demonstrate the relation between pump modes and entanglement of first-order HG modes (HG10 entangled states) in a type II OPO and show that the maximum entanglement of high order spatial modes can be obtained by optimizing the pump spatial mode. To our knowledge, this is the first time to report this. Utilizing the optimal pump mode, the HG10 mode threshold can be reached easily witho"},"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":"1701.05333","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-01-19T08:49:23Z","cross_cats_sorted":[],"title_canon_sha256":"df4cc4ca1973fe1d85492142688272eb8cf369bb1f751958c0d38d2d3f7f854c","abstract_canon_sha256":"fc9a85ce85c6a6f0e21e3fff49c13184026cdc2c252b850b28605afb8bd39f52"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:47:04.339767Z","signature_b64":"USGPz0zs7BVtHk/NbbMQ69xzL1C+n4hSJ3AcO0+6L+ihUpsb0BY+X6sMc4HnsLB+SX4jwwf18xLN8MV0Ub8tDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"361355c389f3c7324e6410ab6816b3df8e154a757bfaebceb9d9b445d2ead285","last_reissued_at":"2026-05-18T00:47:04.339298Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:47:04.339298Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Higher Order Mode Entanglement in a Type II Optical Parametric Oscillator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chunxiao Cai, Hengxin Sun, Jiangrui Gao, Jun Guo, Kui Liu, Long Ma","submitted_at":"2017-01-19T08:49:23Z","abstract_excerpt":"Nonclassical beams in high order spatial modes have attracted much interest but they exhibit much less squeezing and entanglement than the fundamental spatial modes, limiting their applications. We experimentally demonstrate the relation between pump modes and entanglement of first-order HG modes (HG10 entangled states) in a type II OPO and show that the maximum entanglement of high order spatial modes can be obtained by optimizing the pump spatial mode. To our knowledge, this is the first time to report this. Utilizing the optimal pump mode, the HG10 mode threshold can be reached easily witho"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.05333","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":"1701.05333","created_at":"2026-05-18T00:47:04.339383+00:00"},{"alias_kind":"arxiv_version","alias_value":"1701.05333v1","created_at":"2026-05-18T00:47:04.339383+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.05333","created_at":"2026-05-18T00:47:04.339383+00:00"},{"alias_kind":"pith_short_12","alias_value":"GYJVLQ4J6PDT","created_at":"2026-05-18T12:31:18.294218+00:00"},{"alias_kind":"pith_short_16","alias_value":"GYJVLQ4J6PDTETTE","created_at":"2026-05-18T12:31:18.294218+00:00"},{"alias_kind":"pith_short_8","alias_value":"GYJVLQ4J","created_at":"2026-05-18T12:31:18.294218+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/GYJVLQ4J6PDTETTECCVWQFVT36","json":"https://pith.science/pith/GYJVLQ4J6PDTETTECCVWQFVT36.json","graph_json":"https://pith.science/api/pith-number/GYJVLQ4J6PDTETTECCVWQFVT36/graph.json","events_json":"https://pith.science/api/pith-number/GYJVLQ4J6PDTETTECCVWQFVT36/events.json","paper":"https://pith.science/paper/GYJVLQ4J"},"agent_actions":{"view_html":"https://pith.science/pith/GYJVLQ4J6PDTETTECCVWQFVT36","download_json":"https://pith.science/pith/GYJVLQ4J6PDTETTECCVWQFVT36.json","view_paper":"https://pith.science/paper/GYJVLQ4J","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1701.05333&json=true","fetch_graph":"https://pith.science/api/pith-number/GYJVLQ4J6PDTETTECCVWQFVT36/graph.json","fetch_events":"https://pith.science/api/pith-number/GYJVLQ4J6PDTETTECCVWQFVT36/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GYJVLQ4J6PDTETTECCVWQFVT36/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GYJVLQ4J6PDTETTECCVWQFVT36/action/storage_attestation","attest_author":"https://pith.science/pith/GYJVLQ4J6PDTETTECCVWQFVT36/action/author_attestation","sign_citation":"https://pith.science/pith/GYJVLQ4J6PDTETTECCVWQFVT36/action/citation_signature","submit_replication":"https://pith.science/pith/GYJVLQ4J6PDTETTECCVWQFVT36/action/replication_record"}},"created_at":"2026-05-18T00:47:04.339383+00:00","updated_at":"2026-05-18T00:47:04.339383+00:00"}