{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:YMNPEOHLIYJTPLY4RG3P3URVPO","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":"c1492902748d5f732c924370a3b57de2cac880d01c9e362b50bf1dc6f31fb35c","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-01-12T19:10:12Z","title_canon_sha256":"ba8fa8ddbf61c1bbdadd48d0d385c6810cc32f01f7d70626f2c85821852d21a1"},"schema_version":"1.0","source":{"id":"1801.04291","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.04291","created_at":"2026-05-18T00:17:07Z"},{"alias_kind":"arxiv_version","alias_value":"1801.04291v1","created_at":"2026-05-18T00:17:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.04291","created_at":"2026-05-18T00:17:07Z"},{"alias_kind":"pith_short_12","alias_value":"YMNPEOHLIYJT","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YMNPEOHLIYJTPLY4","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YMNPEOHL","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:940caed25a679d3c64791a2accfbd7ba963aa81fa816185bfac8f69233002b1e","target":"graph","created_at":"2026-05-18T00:17:07Z","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 analyze the coupling of two qubits via an epitaxial semiconducting junction. In particular, we consider three configurations that include pairs of transmons or gatemons as well as gatemon-like two qubits formed by an epitaxial four-terminal junction. These three configurations provide an electrical control of the interaction between the qubits by applying voltage to a metallic gate near the semiconductor junction and can be utilized to naturally realize a controlled-Z gate (CZ). We calculate the fidelity and timing for such CZ gate. We demonstrate that in the absence of decoherence, the CZ ","authors_text":"Alex Levchenko, Hong-Yi Xie, Javad Shabani, Maxim G. Vavilov, Vladimir E. Manucharyan, Zhenyi Qi","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-01-12T19:10:12Z","title":"Controlled-Z gate for transmon qubits coupled by semiconductor junctions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.04291","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:ef86dcc39f0e5b8988862f7ba79982def8990f956e75278cd50887459570b380","target":"record","created_at":"2026-05-18T00:17:07Z","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":"c1492902748d5f732c924370a3b57de2cac880d01c9e362b50bf1dc6f31fb35c","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-01-12T19:10:12Z","title_canon_sha256":"ba8fa8ddbf61c1bbdadd48d0d385c6810cc32f01f7d70626f2c85821852d21a1"},"schema_version":"1.0","source":{"id":"1801.04291","kind":"arxiv","version":1}},"canonical_sha256":"c31af238eb461337af1c89b6fdd2357b95f10a54c3d1691e0700fcceb8dd534a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c31af238eb461337af1c89b6fdd2357b95f10a54c3d1691e0700fcceb8dd534a","first_computed_at":"2026-05-18T00:17:07.752845Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:17:07.752845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JAt3EivrWnK9YXNXuBRK863LuNbfevaH+bq5x1DptEevMMNrG8Liwhx++NiJ2nMDTV25v6fQwqBmQRKDyoEUDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:17:07.754111Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.04291","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ef86dcc39f0e5b8988862f7ba79982def8990f956e75278cd50887459570b380","sha256:940caed25a679d3c64791a2accfbd7ba963aa81fa816185bfac8f69233002b1e"],"state_sha256":"8ebdf7295b6c6b64eed3f4407455ec01395fe21d33fff430a774b0427f2a7dfc"}