{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:K2LLTDTRVJUUGXYZPGQ2LIZKUL","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":"66f7ff9a047890b4aed6e062af593d97162c5af7ce18699a5b73a40f24f1aff3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-09-04T14:56:30Z","title_canon_sha256":"502addb2d264a3dbebf3710f9e72f456c20f52ca8a96714da3e19ad0e5aa5533"},"schema_version":"1.0","source":{"id":"1509.01478","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.01478","created_at":"2026-05-18T01:10:15Z"},{"alias_kind":"arxiv_version","alias_value":"1509.01478v2","created_at":"2026-05-18T01:10:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.01478","created_at":"2026-05-18T01:10:15Z"},{"alias_kind":"pith_short_12","alias_value":"K2LLTDTRVJUU","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"K2LLTDTRVJUUGXYZ","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"K2LLTDTR","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:720c89e94f2e00f63834df42f436f4b453f079f6fce98bc62988abc640587419","target":"graph","created_at":"2026-05-18T01:10:15Z","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"},"paper":{"abstract_excerpt":"Using trapped atomic ions we demonstrate a tailored and versatile effective spin-system suitable for quantum simulations and universal quantum computation. By simply applying microwave pulses, selected spins can be decoupled from the remaining system and thus can serve as a quantum memory, while simultaneously, other coupled spins perform conditional quantum dynamics. Also, microwave pulses can change the sign of spin-spin couplings, as well as their effective strength, even during the course of a quantum algorithm. Taking advantage of the simultaneous long-range coupling between three spins a","authors_text":"Ch. Piltz, Ch. Wunderlich, S. Ivanov, S. W\\\"olk, Th. Sriarunothai","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-09-04T14:56:30Z","title":"Versatile microwave-driven trapped ion spin system for quantum information processing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.01478","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":"sha256:9b1c055d79a8c7355a219c307ea72c569321e7602200441eb87e490cf1b78adc","target":"record","created_at":"2026-05-18T01:10:15Z","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":"66f7ff9a047890b4aed6e062af593d97162c5af7ce18699a5b73a40f24f1aff3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-09-04T14:56:30Z","title_canon_sha256":"502addb2d264a3dbebf3710f9e72f456c20f52ca8a96714da3e19ad0e5aa5533"},"schema_version":"1.0","source":{"id":"1509.01478","kind":"arxiv","version":2}},"canonical_sha256":"5696b98e71aa69435f1979a1a5a32aa2c2c0cba1e099ce9eadffdc0ea08b323b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5696b98e71aa69435f1979a1a5a32aa2c2c0cba1e099ce9eadffdc0ea08b323b","first_computed_at":"2026-05-18T01:10:15.063679Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:10:15.063679Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Pc8yon58FsFycBWxTG6cc5AP41jPfUzW09BSKorGMAsrHEPDE+PKN3+EO1J/wPYl9gva+MkSqnWkRsPmc1MSBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:10:15.064139Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.01478","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9b1c055d79a8c7355a219c307ea72c569321e7602200441eb87e490cf1b78adc","sha256:720c89e94f2e00f63834df42f436f4b453f079f6fce98bc62988abc640587419"],"state_sha256":"f0eb0b0d428d0cf37553163f52c3d658378442346b9b991e9db99b4007b4055e"}