{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:EUWEDFXEMU4L3GGNAQ6TSW2DXF","short_pith_number":"pith:EUWEDFXE","canonical_record":{"source":{"id":"2607.09513","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-10T15:27:13Z","cross_cats_sorted":[],"title_canon_sha256":"dc8696c8b02e7ec0be722b9b2635df13399077090eeff940b9c6d786ad83d0c6","abstract_canon_sha256":"c76669ac42bc6a6bf6af0ecfa9424522233b0f9d5547c913eba885cba72fde70"},"schema_version":"1.0"},"canonical_sha256":"252c4196e46538bd98cd043d395b43b95a3dc974696cee5e5a15e687e39a42a1","source":{"kind":"arxiv","id":"2607.09513","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.09513","created_at":"2026-07-13T01:20:15Z"},{"alias_kind":"arxiv_version","alias_value":"2607.09513v1","created_at":"2026-07-13T01:20:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.09513","created_at":"2026-07-13T01:20:15Z"},{"alias_kind":"pith_short_12","alias_value":"EUWEDFXEMU4L","created_at":"2026-07-13T01:20:15Z"},{"alias_kind":"pith_short_16","alias_value":"EUWEDFXEMU4L3GGN","created_at":"2026-07-13T01:20:15Z"},{"alias_kind":"pith_short_8","alias_value":"EUWEDFXE","created_at":"2026-07-13T01:20:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:EUWEDFXEMU4L3GGNAQ6TSW2DXF","target":"record","payload":{"canonical_record":{"source":{"id":"2607.09513","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-10T15:27:13Z","cross_cats_sorted":[],"title_canon_sha256":"dc8696c8b02e7ec0be722b9b2635df13399077090eeff940b9c6d786ad83d0c6","abstract_canon_sha256":"c76669ac42bc6a6bf6af0ecfa9424522233b0f9d5547c913eba885cba72fde70"},"schema_version":"1.0"},"canonical_sha256":"252c4196e46538bd98cd043d395b43b95a3dc974696cee5e5a15e687e39a42a1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-13T01:20:15.166501Z","signature_b64":"MnEXPcwqrgnqxTzhaK6XzNNof5SwLNFZ9gvVY0gpPl0qqiEGGKU6Z2xcfjnktiOD5WhAtOw/Mjw3mV8ISFJ9AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"252c4196e46538bd98cd043d395b43b95a3dc974696cee5e5a15e687e39a42a1","last_reissued_at":"2026-07-13T01:20:15.165525Z","signature_status":"signed_v1","first_computed_at":"2026-07-13T01:20:15.165525Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.09513","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-13T01:20:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cRF37nnlD9tRCNXILkyKPRiMTmZkQgweS8dofjb7C801KgPMhZl/KIeuekwHora4GM7dehq+s6+PEIKmQUrWBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T03:18:51.325871Z"},"content_sha256":"0abbb304a352d487904c72bd434e7cd8849ea55edc817776dc1fc93fa38b0cb9","schema_version":"1.0","event_id":"sha256:0abbb304a352d487904c72bd434e7cd8849ea55edc817776dc1fc93fa38b0cb9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:EUWEDFXEMU4L3GGNAQ6TSW2DXF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Qubit-Boson Hybrid Beam-Splitter Gate with Kerr Nonlinearity in Circuit QED for Many-Body Dynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Andrea Mammola, Giuseppe Di Molfetta, Quentin Schaeverbeke","submitted_at":"2026-07-10T15:27:13Z","abstract_excerpt":"We introduce a hybrid qubit-boson beam-splitter gate in which a microwave cavity mode couples to an exchange-dressed two-level subsystem of an interacting two-qubit system in the presence of Kerr nonlinearity. Starting from a general circuit quantum electrodynamics (cQED) model, we derive the corresponding hybrid qubit-cavity interaction, develop its open-system description including photon- and qubit-sector-bath-induced dissipation and obtain in the weak-dissipation regime an analytical expression for the average gate fidelity. We further identify carbon-nanotube circuit QED as a concrete pla"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.09513","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/2607.09513/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":"2026-07-13T01:20:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NQ8ixQz8rersXwioLBLBDiQoDZbHXtvG53i0H+VLjoVf3iMry0LZ0rbHFMkQxtWbHbc9V7wtkeC5IPn8nQb7Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T03:18:51.326592Z"},"content_sha256":"0edeb17c52a5a932084a1d6997ea501efd08d69e3786e697691d6cd8de89ca24","schema_version":"1.0","event_id":"sha256:0edeb17c52a5a932084a1d6997ea501efd08d69e3786e697691d6cd8de89ca24"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EUWEDFXEMU4L3GGNAQ6TSW2DXF/bundle.json","state_url":"https://pith.science/pith/EUWEDFXEMU4L3GGNAQ6TSW2DXF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EUWEDFXEMU4L3GGNAQ6TSW2DXF/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":"2026-08-15T03:18:51Z","links":{"resolver":"https://pith.science/pith/EUWEDFXEMU4L3GGNAQ6TSW2DXF","bundle":"https://pith.science/pith/EUWEDFXEMU4L3GGNAQ6TSW2DXF/bundle.json","state":"https://pith.science/pith/EUWEDFXEMU4L3GGNAQ6TSW2DXF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EUWEDFXEMU4L3GGNAQ6TSW2DXF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:EUWEDFXEMU4L3GGNAQ6TSW2DXF","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":"c76669ac42bc6a6bf6af0ecfa9424522233b0f9d5547c913eba885cba72fde70","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-10T15:27:13Z","title_canon_sha256":"dc8696c8b02e7ec0be722b9b2635df13399077090eeff940b9c6d786ad83d0c6"},"schema_version":"1.0","source":{"id":"2607.09513","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.09513","created_at":"2026-07-13T01:20:15Z"},{"alias_kind":"arxiv_version","alias_value":"2607.09513v1","created_at":"2026-07-13T01:20:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.09513","created_at":"2026-07-13T01:20:15Z"},{"alias_kind":"pith_short_12","alias_value":"EUWEDFXEMU4L","created_at":"2026-07-13T01:20:15Z"},{"alias_kind":"pith_short_16","alias_value":"EUWEDFXEMU4L3GGN","created_at":"2026-07-13T01:20:15Z"},{"alias_kind":"pith_short_8","alias_value":"EUWEDFXE","created_at":"2026-07-13T01:20:15Z"}],"graph_snapshots":[{"event_id":"sha256:0edeb17c52a5a932084a1d6997ea501efd08d69e3786e697691d6cd8de89ca24","target":"graph","created_at":"2026-07-13T01:20:15Z","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/2607.09513/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We introduce a hybrid qubit-boson beam-splitter gate in which a microwave cavity mode couples to an exchange-dressed two-level subsystem of an interacting two-qubit system in the presence of Kerr nonlinearity. Starting from a general circuit quantum electrodynamics (cQED) model, we derive the corresponding hybrid qubit-cavity interaction, develop its open-system description including photon- and qubit-sector-bath-induced dissipation and obtain in the weak-dissipation regime an analytical expression for the average gate fidelity. We further identify carbon-nanotube circuit QED as a concrete pla","authors_text":"Andrea Mammola, Giuseppe Di Molfetta, Quentin Schaeverbeke","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-10T15:27:13Z","title":"Qubit-Boson Hybrid Beam-Splitter Gate with Kerr Nonlinearity in Circuit QED for Many-Body Dynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.09513","kind":"arxiv","version":1},"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":"sha256:0abbb304a352d487904c72bd434e7cd8849ea55edc817776dc1fc93fa38b0cb9","target":"record","created_at":"2026-07-13T01:20:15Z","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":"c76669ac42bc6a6bf6af0ecfa9424522233b0f9d5547c913eba885cba72fde70","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-10T15:27:13Z","title_canon_sha256":"dc8696c8b02e7ec0be722b9b2635df13399077090eeff940b9c6d786ad83d0c6"},"schema_version":"1.0","source":{"id":"2607.09513","kind":"arxiv","version":1}},"canonical_sha256":"252c4196e46538bd98cd043d395b43b95a3dc974696cee5e5a15e687e39a42a1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"252c4196e46538bd98cd043d395b43b95a3dc974696cee5e5a15e687e39a42a1","first_computed_at":"2026-07-13T01:20:15.165525Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-13T01:20:15.165525Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MnEXPcwqrgnqxTzhaK6XzNNof5SwLNFZ9gvVY0gpPl0qqiEGGKU6Z2xcfjnktiOD5WhAtOw/Mjw3mV8ISFJ9AA==","signature_status":"signed_v1","signed_at":"2026-07-13T01:20:15.166501Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.09513","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0abbb304a352d487904c72bd434e7cd8849ea55edc817776dc1fc93fa38b0cb9","sha256:0edeb17c52a5a932084a1d6997ea501efd08d69e3786e697691d6cd8de89ca24"],"state_sha256":"26726f073f89be0ded1c68194e144ff601c4a2c7661e8361f75bbe14af269910"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lwc9En+Mm2i0Z90pKpRxiVotQ5wnPOkHlfzKmKY31umowxt3JJpJt0V/FQx7g9yC2Hh21Mm7Gux9ANAdOTJtCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T03:18:51.331194Z","bundle_sha256":"2f5074451ca9a35ec67f33bf6b004fb143868f87ed70aae66543300466dce858"}}