{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:GT6LBBXCEW5OUWWRVSZCGFRGNP","short_pith_number":"pith:GT6LBBXC","canonical_record":{"source":{"id":"2407.07991","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-07-10T18:48:41Z","cross_cats_sorted":[],"title_canon_sha256":"efdc6ca4468c7f785e01a950a0a2d274adbb389179503821ae9e06cae29832df","abstract_canon_sha256":"9ce2299e74aaa935bc516bb24eb1854b1878c95a6815eb61e0d375a6f6ef5024"},"schema_version":"1.0"},"canonical_sha256":"34fcb086e225baea5ad1acb22316266be8d1cf4f15a311c495c678e0053bf51e","source":{"kind":"arxiv","id":"2407.07991","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.07991","created_at":"2026-07-05T11:35:50Z"},{"alias_kind":"arxiv_version","alias_value":"2407.07991v2","created_at":"2026-07-05T11:35:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.07991","created_at":"2026-07-05T11:35:50Z"},{"alias_kind":"pith_short_12","alias_value":"GT6LBBXCEW5O","created_at":"2026-07-05T11:35:50Z"},{"alias_kind":"pith_short_16","alias_value":"GT6LBBXCEW5OUWWR","created_at":"2026-07-05T11:35:50Z"},{"alias_kind":"pith_short_8","alias_value":"GT6LBBXC","created_at":"2026-07-05T11:35:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:GT6LBBXCEW5OUWWRVSZCGFRGNP","target":"record","payload":{"canonical_record":{"source":{"id":"2407.07991","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-07-10T18:48:41Z","cross_cats_sorted":[],"title_canon_sha256":"efdc6ca4468c7f785e01a950a0a2d274adbb389179503821ae9e06cae29832df","abstract_canon_sha256":"9ce2299e74aaa935bc516bb24eb1854b1878c95a6815eb61e0d375a6f6ef5024"},"schema_version":"1.0"},"canonical_sha256":"34fcb086e225baea5ad1acb22316266be8d1cf4f15a311c495c678e0053bf51e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:35:50.338795Z","signature_b64":"D4xN4o5NtBGaXk5zQfkUUWOCF62EfQMTC7TEwbz0m5eG7SaJqSUpdL1tI8d1uvTGYpXMbzHKjlN1ZwdKMxzEAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"34fcb086e225baea5ad1acb22316266be8d1cf4f15a311c495c678e0053bf51e","last_reissued_at":"2026-07-05T11:35:50.338269Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:35:50.338269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2407.07991","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:35:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gr0uKPCjNM7X3ZLf+MA834XkR4na9p3I3f2+YFWuSor6yxPvyjD3IhhpRFr/7IjxTvj8eiK/SQGSvCUj+9CTBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T13:39:32.830424Z"},"content_sha256":"a19dde231c6de6f18e158ca64463d00c8ef347d486e3714ff706fe96fdef65e5","schema_version":"1.0","event_id":"sha256:a19dde231c6de6f18e158ca64463d00c8ef347d486e3714ff706fe96fdef65e5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:GT6LBBXCEW5OUWWRVSZCGFRGNP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Entanglement of photonic modes from a continuously driven two-level system","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Akshay Gaikwad, Alejandro Vivas-Viana, Anton Frisk Kockum, Axel Martin Eriksson, Carlos Sanchez Munoz, Claudia Castillo-Moreno, Ingrid Strandberg, Jiaying Yang, Muhammad Asad Ullah, Simone Gasparinetti","submitted_at":"2024-07-10T18:48:41Z","abstract_excerpt":"The ability to generate entangled states of light is a key primitive for quantum communication and distributed quantum computation. Continuously driven sources, including those based on spontaneous parametric downconversion, are usually probabilistic, whereas deterministic sources require accurate timing of the control fields. Here, we experimentally generate entangled photonic modes by continuously exciting a quantum emitter, a superconducting qubit, with a coherent drive, taking advantage of mode matching in the time and frequency domain. Using joint quantum state tomography and logarithmic "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.07991","kind":"arxiv","version":2},"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/2407.07991/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:35:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a9ut/xOLi2m7MBsNSPP+mqMk2aMpF5cfvaj8A5fKNcyb8jAD6vrM6s0C2z3Way8mEjlzEgtUmhqeo2qymujjAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T13:39:32.830995Z"},"content_sha256":"0a7db8c0b7f4ec57df5bf4c402b46291100dd6a3d7022eaf46dab2157e0e349e","schema_version":"1.0","event_id":"sha256:0a7db8c0b7f4ec57df5bf4c402b46291100dd6a3d7022eaf46dab2157e0e349e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GT6LBBXCEW5OUWWRVSZCGFRGNP/bundle.json","state_url":"https://pith.science/pith/GT6LBBXCEW5OUWWRVSZCGFRGNP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GT6LBBXCEW5OUWWRVSZCGFRGNP/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":"2026-08-23T13:39:32Z","links":{"resolver":"https://pith.science/pith/GT6LBBXCEW5OUWWRVSZCGFRGNP","bundle":"https://pith.science/pith/GT6LBBXCEW5OUWWRVSZCGFRGNP/bundle.json","state":"https://pith.science/pith/GT6LBBXCEW5OUWWRVSZCGFRGNP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GT6LBBXCEW5OUWWRVSZCGFRGNP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:GT6LBBXCEW5OUWWRVSZCGFRGNP","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":"9ce2299e74aaa935bc516bb24eb1854b1878c95a6815eb61e0d375a6f6ef5024","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-07-10T18:48:41Z","title_canon_sha256":"efdc6ca4468c7f785e01a950a0a2d274adbb389179503821ae9e06cae29832df"},"schema_version":"1.0","source":{"id":"2407.07991","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.07991","created_at":"2026-07-05T11:35:50Z"},{"alias_kind":"arxiv_version","alias_value":"2407.07991v2","created_at":"2026-07-05T11:35:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.07991","created_at":"2026-07-05T11:35:50Z"},{"alias_kind":"pith_short_12","alias_value":"GT6LBBXCEW5O","created_at":"2026-07-05T11:35:50Z"},{"alias_kind":"pith_short_16","alias_value":"GT6LBBXCEW5OUWWR","created_at":"2026-07-05T11:35:50Z"},{"alias_kind":"pith_short_8","alias_value":"GT6LBBXC","created_at":"2026-07-05T11:35:50Z"}],"graph_snapshots":[{"event_id":"sha256:0a7db8c0b7f4ec57df5bf4c402b46291100dd6a3d7022eaf46dab2157e0e349e","target":"graph","created_at":"2026-07-05T11:35:50Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2407.07991/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The ability to generate entangled states of light is a key primitive for quantum communication and distributed quantum computation. Continuously driven sources, including those based on spontaneous parametric downconversion, are usually probabilistic, whereas deterministic sources require accurate timing of the control fields. Here, we experimentally generate entangled photonic modes by continuously exciting a quantum emitter, a superconducting qubit, with a coherent drive, taking advantage of mode matching in the time and frequency domain. Using joint quantum state tomography and logarithmic ","authors_text":"Akshay Gaikwad, Alejandro Vivas-Viana, Anton Frisk Kockum, Axel Martin Eriksson, Carlos Sanchez Munoz, Claudia Castillo-Moreno, Ingrid Strandberg, Jiaying Yang, Muhammad Asad Ullah, Simone Gasparinetti","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-07-10T18:48:41Z","title":"Entanglement of photonic modes from a continuously driven two-level system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.07991","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:a19dde231c6de6f18e158ca64463d00c8ef347d486e3714ff706fe96fdef65e5","target":"record","created_at":"2026-07-05T11:35:50Z","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":"9ce2299e74aaa935bc516bb24eb1854b1878c95a6815eb61e0d375a6f6ef5024","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-07-10T18:48:41Z","title_canon_sha256":"efdc6ca4468c7f785e01a950a0a2d274adbb389179503821ae9e06cae29832df"},"schema_version":"1.0","source":{"id":"2407.07991","kind":"arxiv","version":2}},"canonical_sha256":"34fcb086e225baea5ad1acb22316266be8d1cf4f15a311c495c678e0053bf51e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"34fcb086e225baea5ad1acb22316266be8d1cf4f15a311c495c678e0053bf51e","first_computed_at":"2026-07-05T11:35:50.338269Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:35:50.338269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"D4xN4o5NtBGaXk5zQfkUUWOCF62EfQMTC7TEwbz0m5eG7SaJqSUpdL1tI8d1uvTGYpXMbzHKjlN1ZwdKMxzEAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:35:50.338795Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.07991","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a19dde231c6de6f18e158ca64463d00c8ef347d486e3714ff706fe96fdef65e5","sha256:0a7db8c0b7f4ec57df5bf4c402b46291100dd6a3d7022eaf46dab2157e0e349e"],"state_sha256":"3cc7e0eb272353d4b364415e1daf9337745f272c254f0c3d56e6c984eef8bff6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IaHpyvfV6Kia5JrZWWiJVQb9L/uzFL+NH9qCnXdmJsVFIpwEa15EJQ8i5sNKuiHm83s+ERgaSWLhK/VRxTrLBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T13:39:32.834544Z","bundle_sha256":"e6684a35a5894a2d468b2911b2ccc3641931294bd308be3cc79af8449d747eeb"}}