{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:UFG5PORN3VTKMAQNBL3HI6KS4C","short_pith_number":"pith:UFG5PORN","canonical_record":{"source":{"id":"1810.13052","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-10-31T00:55:38Z","cross_cats_sorted":[],"title_canon_sha256":"6ece5c79a1901b475ad72de96189fa7ea85361957becfe3484954d7d24ed92d0","abstract_canon_sha256":"62d13bfa7fc4e5264fd1ae6d717bb0a688b0d6a08e83a4ef4c9dfb96e412b1d1"},"schema_version":"1.0"},"canonical_sha256":"a14dd7ba2ddd66a6020d0af6747952e0803cf96fe8703129810a21425d5c8e4c","source":{"kind":"arxiv","id":"1810.13052","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.13052","created_at":"2026-05-17T23:54:34Z"},{"alias_kind":"arxiv_version","alias_value":"1810.13052v3","created_at":"2026-05-17T23:54:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.13052","created_at":"2026-05-17T23:54:34Z"},{"alias_kind":"pith_short_12","alias_value":"UFG5PORN3VTK","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"UFG5PORN3VTKMAQN","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"UFG5PORN","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:UFG5PORN3VTKMAQNBL3HI6KS4C","target":"record","payload":{"canonical_record":{"source":{"id":"1810.13052","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-10-31T00:55:38Z","cross_cats_sorted":[],"title_canon_sha256":"6ece5c79a1901b475ad72de96189fa7ea85361957becfe3484954d7d24ed92d0","abstract_canon_sha256":"62d13bfa7fc4e5264fd1ae6d717bb0a688b0d6a08e83a4ef4c9dfb96e412b1d1"},"schema_version":"1.0"},"canonical_sha256":"a14dd7ba2ddd66a6020d0af6747952e0803cf96fe8703129810a21425d5c8e4c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:34.079336Z","signature_b64":"8aoB6UR6SDfn5WbZwMc2xd+n+9sNcPAFPSoZrW2PGhmpqZTdojKzWQXQX320PR6PzwhyIo2LjIIVryoeki9xAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a14dd7ba2ddd66a6020d0af6747952e0803cf96fe8703129810a21425d5c8e4c","last_reissued_at":"2026-05-17T23:54:34.078771Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:34.078771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.13052","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:54:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aSwmuydy07v9yofbP9nUMahgq2nO9KJ15vXfh0TmD+RdwSZlQtj75Gpqgadcl5GYcQj56NHzCWKqvjYl/2qPCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T13:25:54.754639Z"},"content_sha256":"b0d8a0cd52faa514684fe302332236213461c2d7bb364e7e79e8416d56a7da95","schema_version":"1.0","event_id":"sha256:b0d8a0cd52faa514684fe302332236213461c2d7bb364e7e79e8416d56a7da95"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:UFG5PORN3VTKMAQNBL3HI6KS4C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enhancing quadratic optomechanical coupling via nonlinear medium and lasers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Ai-Xi Chen, Jian-Song Zhang","submitted_at":"2018-10-31T00:55:38Z","abstract_excerpt":"We propose a scheme to significantly increase quadratic optomechanical couplings of optomechanical systems with the help of a nonlinear medium and two driving lasers. The nonlinear medium is driven by one laser and the optical cavity mode is driven by a strong laser. We derive an effective Hamiltonian using squeezing transformation and rotating wave approximation. The effective quadratic optomechanical coupling strength can be larger than the decay rate of the cavity mode by adjusting the two optical driving fields. The thermal noise of squeezed cavity mode can be suppressed totally with the h"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.13052","kind":"arxiv","version":3},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:54:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f4suhV9GS97gFhmJop13XKqT/EDmh4cI4fTqZsffADP7PItdsplVQksBKh+dsOpHsysIkbg8E6m3ImSDG/ixDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T13:25:54.754980Z"},"content_sha256":"6c9b3f6b852423fed7181c3f3864650962be44afe32c43e1fe685fe106cf3b21","schema_version":"1.0","event_id":"sha256:6c9b3f6b852423fed7181c3f3864650962be44afe32c43e1fe685fe106cf3b21"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UFG5PORN3VTKMAQNBL3HI6KS4C/bundle.json","state_url":"https://pith.science/pith/UFG5PORN3VTKMAQNBL3HI6KS4C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UFG5PORN3VTKMAQNBL3HI6KS4C/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-02T13:25:54Z","links":{"resolver":"https://pith.science/pith/UFG5PORN3VTKMAQNBL3HI6KS4C","bundle":"https://pith.science/pith/UFG5PORN3VTKMAQNBL3HI6KS4C/bundle.json","state":"https://pith.science/pith/UFG5PORN3VTKMAQNBL3HI6KS4C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UFG5PORN3VTKMAQNBL3HI6KS4C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:UFG5PORN3VTKMAQNBL3HI6KS4C","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":"62d13bfa7fc4e5264fd1ae6d717bb0a688b0d6a08e83a4ef4c9dfb96e412b1d1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-10-31T00:55:38Z","title_canon_sha256":"6ece5c79a1901b475ad72de96189fa7ea85361957becfe3484954d7d24ed92d0"},"schema_version":"1.0","source":{"id":"1810.13052","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.13052","created_at":"2026-05-17T23:54:34Z"},{"alias_kind":"arxiv_version","alias_value":"1810.13052v3","created_at":"2026-05-17T23:54:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.13052","created_at":"2026-05-17T23:54:34Z"},{"alias_kind":"pith_short_12","alias_value":"UFG5PORN3VTK","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"UFG5PORN3VTKMAQN","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"UFG5PORN","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:6c9b3f6b852423fed7181c3f3864650962be44afe32c43e1fe685fe106cf3b21","target":"graph","created_at":"2026-05-17T23:54:34Z","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":"We propose a scheme to significantly increase quadratic optomechanical couplings of optomechanical systems with the help of a nonlinear medium and two driving lasers. The nonlinear medium is driven by one laser and the optical cavity mode is driven by a strong laser. We derive an effective Hamiltonian using squeezing transformation and rotating wave approximation. The effective quadratic optomechanical coupling strength can be larger than the decay rate of the cavity mode by adjusting the two optical driving fields. The thermal noise of squeezed cavity mode can be suppressed totally with the h","authors_text":"Ai-Xi Chen, Jian-Song Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-10-31T00:55:38Z","title":"Enhancing quadratic optomechanical coupling via nonlinear medium and lasers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.13052","kind":"arxiv","version":3},"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:b0d8a0cd52faa514684fe302332236213461c2d7bb364e7e79e8416d56a7da95","target":"record","created_at":"2026-05-17T23:54:34Z","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":"62d13bfa7fc4e5264fd1ae6d717bb0a688b0d6a08e83a4ef4c9dfb96e412b1d1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-10-31T00:55:38Z","title_canon_sha256":"6ece5c79a1901b475ad72de96189fa7ea85361957becfe3484954d7d24ed92d0"},"schema_version":"1.0","source":{"id":"1810.13052","kind":"arxiv","version":3}},"canonical_sha256":"a14dd7ba2ddd66a6020d0af6747952e0803cf96fe8703129810a21425d5c8e4c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a14dd7ba2ddd66a6020d0af6747952e0803cf96fe8703129810a21425d5c8e4c","first_computed_at":"2026-05-17T23:54:34.078771Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:34.078771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8aoB6UR6SDfn5WbZwMc2xd+n+9sNcPAFPSoZrW2PGhmpqZTdojKzWQXQX320PR6PzwhyIo2LjIIVryoeki9xAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:34.079336Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.13052","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b0d8a0cd52faa514684fe302332236213461c2d7bb364e7e79e8416d56a7da95","sha256:6c9b3f6b852423fed7181c3f3864650962be44afe32c43e1fe685fe106cf3b21"],"state_sha256":"bb205f0ccd8773ac0b6679992710bc4aeb5571c2df92a5df8f996fa443031c44"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g0C0PzFHYxCG7wludZhurdQec98wy1kd8r9xt1uy6GcHY7dZXtbxhkV7ocP8lt0skt85PGeOHXyVD1KMaXTABQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T13:25:54.758349Z","bundle_sha256":"5974f5d3dce72b267875901b074fdabb0752effa97412382207f390bb0ccb399"}}