{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:23DHSBXBZDJM76R77GOFDAJSH4","short_pith_number":"pith:23DHSBXB","schema_version":"1.0","canonical_sha256":"d6c67906e1c8d2cffa3ff99c5181323f09dfb49085f97c601b5a62c5859a05da","source":{"kind":"arxiv","id":"1806.05276","version":1},"attestation_state":"computed","paper":{"title":"High-efficiency measurement of an artificial atom embedded in a parametric amplifier","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A.A. Clerk, A. Dove, A. Eddins, B.A. Levitan, D.M. Toyli, E.M. Levenson-Falk, I. Siddiqi, J.M. Kreikebaum, L.C.G. Govia, W.P. Livingston","submitted_at":"2018-06-13T21:38:15Z","abstract_excerpt":"A crucial limit to measurement efficiencies of superconducting circuits comes from losses involved when coupling to an external quantum amplifier. Here, we realize a device circumventing this problem by directly embedding a two-level artificial atom, comprised of a transmon qubit, within a flux-pumped Josephson parametric amplifier. Surprisingly, this configuration is able to enhance dispersive measurement without exposing the qubit to appreciable excess backaction. This is accomplished by engineering the circuit to permit high-power operation that reduces information loss to unmonitored chann"},"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":"1806.05276","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-06-13T21:38:15Z","cross_cats_sorted":[],"title_canon_sha256":"f0fb653f31c71d4b777aae5fa051866e6ae71ac71368e2ed8d9c0fe241484f0a","abstract_canon_sha256":"7a6edf42d4b3e199f5142324ef993f709f9a0430835290a2e30c4049932ad661"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:56:20.627945Z","signature_b64":"Nnc1J0W7jgF56x4idds6CFVaO6GVLqhfYe6LFPZO+8d8h6RQgDco0WbGmF05/O9/gCe3eMTJL8F8s/fKMe3HBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d6c67906e1c8d2cffa3ff99c5181323f09dfb49085f97c601b5a62c5859a05da","last_reissued_at":"2026-05-17T23:56:20.627284Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:56:20.627284Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High-efficiency measurement of an artificial atom embedded in a parametric amplifier","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A.A. Clerk, A. Dove, A. Eddins, B.A. Levitan, D.M. Toyli, E.M. Levenson-Falk, I. Siddiqi, J.M. Kreikebaum, L.C.G. Govia, W.P. Livingston","submitted_at":"2018-06-13T21:38:15Z","abstract_excerpt":"A crucial limit to measurement efficiencies of superconducting circuits comes from losses involved when coupling to an external quantum amplifier. Here, we realize a device circumventing this problem by directly embedding a two-level artificial atom, comprised of a transmon qubit, within a flux-pumped Josephson parametric amplifier. Surprisingly, this configuration is able to enhance dispersive measurement without exposing the qubit to appreciable excess backaction. This is accomplished by engineering the circuit to permit high-power operation that reduces information loss to unmonitored chann"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.05276","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":"1806.05276","created_at":"2026-05-17T23:56:20.627417+00:00"},{"alias_kind":"arxiv_version","alias_value":"1806.05276v1","created_at":"2026-05-17T23:56:20.627417+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.05276","created_at":"2026-05-17T23:56:20.627417+00:00"},{"alias_kind":"pith_short_12","alias_value":"23DHSBXBZDJM","created_at":"2026-05-18T12:31:59.375834+00:00"},{"alias_kind":"pith_short_16","alias_value":"23DHSBXBZDJM76R7","created_at":"2026-05-18T12:31:59.375834+00:00"},{"alias_kind":"pith_short_8","alias_value":"23DHSBXB","created_at":"2026-05-18T12:31:59.375834+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/23DHSBXBZDJM76R77GOFDAJSH4","json":"https://pith.science/pith/23DHSBXBZDJM76R77GOFDAJSH4.json","graph_json":"https://pith.science/api/pith-number/23DHSBXBZDJM76R77GOFDAJSH4/graph.json","events_json":"https://pith.science/api/pith-number/23DHSBXBZDJM76R77GOFDAJSH4/events.json","paper":"https://pith.science/paper/23DHSBXB"},"agent_actions":{"view_html":"https://pith.science/pith/23DHSBXBZDJM76R77GOFDAJSH4","download_json":"https://pith.science/pith/23DHSBXBZDJM76R77GOFDAJSH4.json","view_paper":"https://pith.science/paper/23DHSBXB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1806.05276&json=true","fetch_graph":"https://pith.science/api/pith-number/23DHSBXBZDJM76R77GOFDAJSH4/graph.json","fetch_events":"https://pith.science/api/pith-number/23DHSBXBZDJM76R77GOFDAJSH4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/23DHSBXBZDJM76R77GOFDAJSH4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/23DHSBXBZDJM76R77GOFDAJSH4/action/storage_attestation","attest_author":"https://pith.science/pith/23DHSBXBZDJM76R77GOFDAJSH4/action/author_attestation","sign_citation":"https://pith.science/pith/23DHSBXBZDJM76R77GOFDAJSH4/action/citation_signature","submit_replication":"https://pith.science/pith/23DHSBXBZDJM76R77GOFDAJSH4/action/replication_record"}},"created_at":"2026-05-17T23:56:20.627417+00:00","updated_at":"2026-05-17T23:56:20.627417+00:00"}