{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:Q6ZWTL2SRBKIRTHPZ54FD27SQ2","short_pith_number":"pith:Q6ZWTL2S","canonical_record":{"source":{"id":"1805.06806","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-05-17T14:48:44Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"d93187f41b28ac9fe5f4fa5e22194814502c8cf2a80f8b6fb54afeb0aff4104f","abstract_canon_sha256":"4850a0fcd641c9242f13ac787c42c08b24e8f53df89db9fa5a5ec6cdf70495dd"},"schema_version":"1.0"},"canonical_sha256":"87b369af52885488ccefcf7851ebf286aef2b1fc4f4475169139aeb26364bcc9","source":{"kind":"arxiv","id":"1805.06806","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.06806","created_at":"2026-05-18T00:01:29Z"},{"alias_kind":"arxiv_version","alias_value":"1805.06806v1","created_at":"2026-05-18T00:01:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.06806","created_at":"2026-05-18T00:01:29Z"},{"alias_kind":"pith_short_12","alias_value":"Q6ZWTL2SRBKI","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"Q6ZWTL2SRBKIRTHP","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"Q6ZWTL2S","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:Q6ZWTL2SRBKIRTHPZ54FD27SQ2","target":"record","payload":{"canonical_record":{"source":{"id":"1805.06806","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-05-17T14:48:44Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"d93187f41b28ac9fe5f4fa5e22194814502c8cf2a80f8b6fb54afeb0aff4104f","abstract_canon_sha256":"4850a0fcd641c9242f13ac787c42c08b24e8f53df89db9fa5a5ec6cdf70495dd"},"schema_version":"1.0"},"canonical_sha256":"87b369af52885488ccefcf7851ebf286aef2b1fc4f4475169139aeb26364bcc9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:29.619172Z","signature_b64":"b1qIxPv1cozOFjCoAhP4YDhhH5RwDxYuVedhJli5bsOVvyJ4mf7/y9TpIikx2RCnjAhdYAAn8ocvnePLG6WRBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"87b369af52885488ccefcf7851ebf286aef2b1fc4f4475169139aeb26364bcc9","last_reissued_at":"2026-05-18T00:01:29.618583Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:29.618583Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.06806","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":"2026-05-18T00:01:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rBg0MIXCniKoYWyXkRaAZHPcbLfUAwSNuAaWqbgyGXgMPCQJzzSG+v9bQouLGpOrXqFHN9kfK0aIg/k9jtJLAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T21:13:55.310524Z"},"content_sha256":"2ed1330ade60947eaa6dea6a8fca3aff65a839aac4b1717a4251691bd98a23d1","schema_version":"1.0","event_id":"sha256:2ed1330ade60947eaa6dea6a8fca3aff65a839aac4b1717a4251691bd98a23d1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:Q6ZWTL2SRBKIRTHPZ54FD27SQ2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Robust entanglement gates for trapped-ion qubits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"quant-ph","authors_text":"Nitzan Akerman, Ravid Shaniv, Roee Ozeri, Tom Manovitz, Yotam Shapira","submitted_at":"2018-05-17T14:48:44Z","abstract_excerpt":"High-fidelity two-qubit entangling gates play an important role in many quantum information processing tasks and are a necessary building block for constructing a universal quantum computer. Such high-fidelity gates have been demonstrated on trapped-ion qubits, however, control errors and noise in gate parameters may still lead to reduced fidelity. Here we propose and demonstrate a general family of two-qubit entangling gates which are robust to different sources of noise and control errors. These gates generalize the celebrated M{\\o}lmer-S{\\o}rensen gate by using multi-tone drives. We experim"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.06806","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:01:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BNud6e1ydSC8gc0r3q4bF8ajN/yI/qKjoI9X8fXYxnuHzp1uvkcr8W2Yxx3VLrqjv6GcmC90eStD8S7iDB0TBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T21:13:55.310865Z"},"content_sha256":"5e92ccd3d209cacf05c535c0bcc76d5ee9d20fa72e594957f27f31ab1fcde9e0","schema_version":"1.0","event_id":"sha256:5e92ccd3d209cacf05c535c0bcc76d5ee9d20fa72e594957f27f31ab1fcde9e0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q6ZWTL2SRBKIRTHPZ54FD27SQ2/bundle.json","state_url":"https://pith.science/pith/Q6ZWTL2SRBKIRTHPZ54FD27SQ2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q6ZWTL2SRBKIRTHPZ54FD27SQ2/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":"2026-06-10T21:13:55Z","links":{"resolver":"https://pith.science/pith/Q6ZWTL2SRBKIRTHPZ54FD27SQ2","bundle":"https://pith.science/pith/Q6ZWTL2SRBKIRTHPZ54FD27SQ2/bundle.json","state":"https://pith.science/pith/Q6ZWTL2SRBKIRTHPZ54FD27SQ2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q6ZWTL2SRBKIRTHPZ54FD27SQ2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:Q6ZWTL2SRBKIRTHPZ54FD27SQ2","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":"4850a0fcd641c9242f13ac787c42c08b24e8f53df89db9fa5a5ec6cdf70495dd","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-05-17T14:48:44Z","title_canon_sha256":"d93187f41b28ac9fe5f4fa5e22194814502c8cf2a80f8b6fb54afeb0aff4104f"},"schema_version":"1.0","source":{"id":"1805.06806","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.06806","created_at":"2026-05-18T00:01:29Z"},{"alias_kind":"arxiv_version","alias_value":"1805.06806v1","created_at":"2026-05-18T00:01:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.06806","created_at":"2026-05-18T00:01:29Z"},{"alias_kind":"pith_short_12","alias_value":"Q6ZWTL2SRBKI","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"Q6ZWTL2SRBKIRTHP","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"Q6ZWTL2S","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:5e92ccd3d209cacf05c535c0bcc76d5ee9d20fa72e594957f27f31ab1fcde9e0","target":"graph","created_at":"2026-05-18T00:01:29Z","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":"High-fidelity two-qubit entangling gates play an important role in many quantum information processing tasks and are a necessary building block for constructing a universal quantum computer. Such high-fidelity gates have been demonstrated on trapped-ion qubits, however, control errors and noise in gate parameters may still lead to reduced fidelity. Here we propose and demonstrate a general family of two-qubit entangling gates which are robust to different sources of noise and control errors. These gates generalize the celebrated M{\\o}lmer-S{\\o}rensen gate by using multi-tone drives. We experim","authors_text":"Nitzan Akerman, Ravid Shaniv, Roee Ozeri, Tom Manovitz, Yotam Shapira","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-05-17T14:48:44Z","title":"Robust entanglement gates for trapped-ion qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.06806","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":"sha256:2ed1330ade60947eaa6dea6a8fca3aff65a839aac4b1717a4251691bd98a23d1","target":"record","created_at":"2026-05-18T00:01:29Z","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":"4850a0fcd641c9242f13ac787c42c08b24e8f53df89db9fa5a5ec6cdf70495dd","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-05-17T14:48:44Z","title_canon_sha256":"d93187f41b28ac9fe5f4fa5e22194814502c8cf2a80f8b6fb54afeb0aff4104f"},"schema_version":"1.0","source":{"id":"1805.06806","kind":"arxiv","version":1}},"canonical_sha256":"87b369af52885488ccefcf7851ebf286aef2b1fc4f4475169139aeb26364bcc9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"87b369af52885488ccefcf7851ebf286aef2b1fc4f4475169139aeb26364bcc9","first_computed_at":"2026-05-18T00:01:29.618583Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:29.618583Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b1qIxPv1cozOFjCoAhP4YDhhH5RwDxYuVedhJli5bsOVvyJ4mf7/y9TpIikx2RCnjAhdYAAn8ocvnePLG6WRBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:29.619172Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.06806","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2ed1330ade60947eaa6dea6a8fca3aff65a839aac4b1717a4251691bd98a23d1","sha256:5e92ccd3d209cacf05c535c0bcc76d5ee9d20fa72e594957f27f31ab1fcde9e0"],"state_sha256":"50d9411fdf5fdbcc133f8df24931995f25cb3b429b92a985f30f14438cb407c8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c0j+yFRO3MVoXtmntIlSeXbsM53u6VAMU1X3lBjyVG3yKdSyXVAJGS2m/Tv3uwDyb32MFqWBkc5edEvlQUBRBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T21:13:55.312922Z","bundle_sha256":"603d658912403cfb513af0dc090eb166d70cdb070cfd34b19909fd3cbc1e3571"}}