{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:YCCBOBU6Z36OL2KAKHEKBARJAI","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":"a9ba31867349a59fd6d47c4bc0b2e8e617c4d43f39033812c7c82fdbe78a5c34","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-24T15:36:56Z","title_canon_sha256":"c42fa7dee55d1bf769f4fc979cc6fe3c015f9e283f86e8f9bb07f6ec8652f8e8"},"schema_version":"1.0","source":{"id":"1110.5262","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.5262","created_at":"2026-05-18T03:23:12Z"},{"alias_kind":"arxiv_version","alias_value":"1110.5262v1","created_at":"2026-05-18T03:23:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.5262","created_at":"2026-05-18T03:23:12Z"},{"alias_kind":"pith_short_12","alias_value":"YCCBOBU6Z36O","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"YCCBOBU6Z36OL2KA","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"YCCBOBU6","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:81618580812771ec362f9d5b2c637c11323bf96e647f9b4b6693c6ca8afa48b5","target":"graph","created_at":"2026-05-18T03:23:12Z","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 study multiple-spin coherence transfers in linear Ising spin chains with nearest neighbor couplings. These constitute a model for efficient information transfers in future quantum computing devices and for many multi-dimensional experiments for the assignment of complex spectra in nuclear magnetic resonance spectroscopy. We complement prior analytic techniques for multiple-spin coherence transfers with a systematic numerical study where we obtain strong evidence that a certain analytically-motivated family of restricted controls is sufficient for time-optimality. In the case of a linear thr","authors_text":"Haidong Yuan, Jorge L. Neves, Kavita Dorai, Manoj Nimbalkar, Navin Khaneja, Robert Zeier, S. Begam Elavarasi, Steffen J. Glaser","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-24T15:36:56Z","title":"Multiple-spin coherence transfer in linear Ising spin chains and beyond: numerically-optimized pulses and experiments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.5262","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:bfcebcc6cb247c62510135f58273498d89c3212901c0a117ed5443766c491cb6","target":"record","created_at":"2026-05-18T03:23:12Z","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":"a9ba31867349a59fd6d47c4bc0b2e8e617c4d43f39033812c7c82fdbe78a5c34","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-24T15:36:56Z","title_canon_sha256":"c42fa7dee55d1bf769f4fc979cc6fe3c015f9e283f86e8f9bb07f6ec8652f8e8"},"schema_version":"1.0","source":{"id":"1110.5262","kind":"arxiv","version":1}},"canonical_sha256":"c08417069ecefce5e94051c8a08229021b9349fa3f373db89cfc543569c8adc5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c08417069ecefce5e94051c8a08229021b9349fa3f373db89cfc543569c8adc5","first_computed_at":"2026-05-18T03:23:12.894815Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:23:12.894815Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GyCNly17oFJoKj+2DW/iRag8BmniQxsQJLnqfyH5SbLzu22hNMkB5ZYaVyxowvKCo4k+x8+r/2QYQ5aGvVyAAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:23:12.895716Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.5262","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bfcebcc6cb247c62510135f58273498d89c3212901c0a117ed5443766c491cb6","sha256:81618580812771ec362f9d5b2c637c11323bf96e647f9b4b6693c6ca8afa48b5"],"state_sha256":"c5e74240216e7fe62011b20dae0004ac672a6154befc11a7eca89e022b7e0edd"}