{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:GVKS2ZZF3NY2MQLNOW3GYHUOWZ","short_pith_number":"pith:GVKS2ZZF","canonical_record":{"source":{"id":"1704.06289","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-20T18:19:13Z","cross_cats_sorted":[],"title_canon_sha256":"497d02c713ce02d1a3b0f2c0e6ecadcabbe6dc987e249a520b178a76fe7ad108","abstract_canon_sha256":"f93c3bb7998a0afc717a84749b2a54d0cd9031c164e2f91a5932b680973c9925"},"schema_version":"1.0"},"canonical_sha256":"35552d6725db71a6416d75b66c1e8eb656204accea283e0d7f49a54f098d9ad3","source":{"kind":"arxiv","id":"1704.06289","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.06289","created_at":"2026-05-18T00:30:04Z"},{"alias_kind":"arxiv_version","alias_value":"1704.06289v2","created_at":"2026-05-18T00:30:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.06289","created_at":"2026-05-18T00:30:04Z"},{"alias_kind":"pith_short_12","alias_value":"GVKS2ZZF3NY2","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"GVKS2ZZF3NY2MQLN","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"GVKS2ZZF","created_at":"2026-05-18T12:31:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:GVKS2ZZF3NY2MQLNOW3GYHUOWZ","target":"record","payload":{"canonical_record":{"source":{"id":"1704.06289","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-20T18:19:13Z","cross_cats_sorted":[],"title_canon_sha256":"497d02c713ce02d1a3b0f2c0e6ecadcabbe6dc987e249a520b178a76fe7ad108","abstract_canon_sha256":"f93c3bb7998a0afc717a84749b2a54d0cd9031c164e2f91a5932b680973c9925"},"schema_version":"1.0"},"canonical_sha256":"35552d6725db71a6416d75b66c1e8eb656204accea283e0d7f49a54f098d9ad3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:30:04.789264Z","signature_b64":"goDpeI/smSNtC9EV6Q9ARi3dsD8k4MHC/RKLA2jV065MAZqwzZQU2FY+mz4lTDs5E+MXPs1YS8XdrWaMYlcTBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"35552d6725db71a6416d75b66c1e8eb656204accea283e0d7f49a54f098d9ad3","last_reissued_at":"2026-05-18T00:30:04.788779Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:30:04.788779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.06289","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:30:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rXk6/2zeQH8am00IpMTRC4ECOrwk3K6j1OdV1L91dNBpdihRR1+BclQA5NY97qEJbCAUeEeXDRTmXjN/RyCbCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T22:48:19.229474Z"},"content_sha256":"b712d314e046f3aa4765549bdab93b0c2f594b7727c86cb4c92a39bf8e48bfd5","schema_version":"1.0","event_id":"sha256:b712d314e046f3aa4765549bdab93b0c2f594b7727c86cb4c92a39bf8e48bfd5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:GVKS2ZZF3NY2MQLNOW3GYHUOWZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The roles of drift and control field constraints upon quantum control speed limits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Benjamin Russell, Christian Arenz, Daniel Burgarth, Herschel Rabitz","submitted_at":"2017-04-20T18:19:13Z","abstract_excerpt":"In this work we derive a lower bound for the minimum time required to implement a target unitary transformation through a classical time-dependent field in a closed quantum system. The bound depends on the target gate, the strength of the internal Hamiltonian and the highest permitted control field amplitude. These findings reveal some properties of the reachable set of operations, explicitly analyzed for a single qubit. Moreover, for fully controllable systems, we identify a lower bound for the time at which all unitary gates become reachable. We use numerical gate optimization in order to st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.06289","kind":"arxiv","version":2},"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":"2026-05-18T00:30:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MpjHKaqjPHGxAhlPv6sr3NdE+0U1Qsz3dBx6vmzwGNUbVEO/GReelkqY3LliTcLnikb5aaFoWtBlI/Y+2MUWAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T22:48:19.230117Z"},"content_sha256":"6d841973fe2f5ea8575e66f6f4049df1511884f28800182511eb3949cd31c9fd","schema_version":"1.0","event_id":"sha256:6d841973fe2f5ea8575e66f6f4049df1511884f28800182511eb3949cd31c9fd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GVKS2ZZF3NY2MQLNOW3GYHUOWZ/bundle.json","state_url":"https://pith.science/pith/GVKS2ZZF3NY2MQLNOW3GYHUOWZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GVKS2ZZF3NY2MQLNOW3GYHUOWZ/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":"2026-05-29T22:48:19Z","links":{"resolver":"https://pith.science/pith/GVKS2ZZF3NY2MQLNOW3GYHUOWZ","bundle":"https://pith.science/pith/GVKS2ZZF3NY2MQLNOW3GYHUOWZ/bundle.json","state":"https://pith.science/pith/GVKS2ZZF3NY2MQLNOW3GYHUOWZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GVKS2ZZF3NY2MQLNOW3GYHUOWZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:GVKS2ZZF3NY2MQLNOW3GYHUOWZ","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":"f93c3bb7998a0afc717a84749b2a54d0cd9031c164e2f91a5932b680973c9925","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-20T18:19:13Z","title_canon_sha256":"497d02c713ce02d1a3b0f2c0e6ecadcabbe6dc987e249a520b178a76fe7ad108"},"schema_version":"1.0","source":{"id":"1704.06289","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.06289","created_at":"2026-05-18T00:30:04Z"},{"alias_kind":"arxiv_version","alias_value":"1704.06289v2","created_at":"2026-05-18T00:30:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.06289","created_at":"2026-05-18T00:30:04Z"},{"alias_kind":"pith_short_12","alias_value":"GVKS2ZZF3NY2","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"GVKS2ZZF3NY2MQLN","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"GVKS2ZZF","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:6d841973fe2f5ea8575e66f6f4049df1511884f28800182511eb3949cd31c9fd","target":"graph","created_at":"2026-05-18T00:30:04Z","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":"In this work we derive a lower bound for the minimum time required to implement a target unitary transformation through a classical time-dependent field in a closed quantum system. The bound depends on the target gate, the strength of the internal Hamiltonian and the highest permitted control field amplitude. These findings reveal some properties of the reachable set of operations, explicitly analyzed for a single qubit. Moreover, for fully controllable systems, we identify a lower bound for the time at which all unitary gates become reachable. We use numerical gate optimization in order to st","authors_text":"Benjamin Russell, Christian Arenz, Daniel Burgarth, Herschel Rabitz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-20T18:19:13Z","title":"The roles of drift and control field constraints upon quantum control speed limits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.06289","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:b712d314e046f3aa4765549bdab93b0c2f594b7727c86cb4c92a39bf8e48bfd5","target":"record","created_at":"2026-05-18T00:30:04Z","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":"f93c3bb7998a0afc717a84749b2a54d0cd9031c164e2f91a5932b680973c9925","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-20T18:19:13Z","title_canon_sha256":"497d02c713ce02d1a3b0f2c0e6ecadcabbe6dc987e249a520b178a76fe7ad108"},"schema_version":"1.0","source":{"id":"1704.06289","kind":"arxiv","version":2}},"canonical_sha256":"35552d6725db71a6416d75b66c1e8eb656204accea283e0d7f49a54f098d9ad3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"35552d6725db71a6416d75b66c1e8eb656204accea283e0d7f49a54f098d9ad3","first_computed_at":"2026-05-18T00:30:04.788779Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:30:04.788779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"goDpeI/smSNtC9EV6Q9ARi3dsD8k4MHC/RKLA2jV065MAZqwzZQU2FY+mz4lTDs5E+MXPs1YS8XdrWaMYlcTBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:30:04.789264Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.06289","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b712d314e046f3aa4765549bdab93b0c2f594b7727c86cb4c92a39bf8e48bfd5","sha256:6d841973fe2f5ea8575e66f6f4049df1511884f28800182511eb3949cd31c9fd"],"state_sha256":"7451a0e599ccbe8e1a64480332ee3ca21c5ab1e2d00cad86a9736c21e6ee034a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eTg5jRNThL16FHzi4uKNiYN5TVqd8qrYfY/AEvg0EEp/Qfaw059E6jwP8v3xMNlqvgXzsGnDUsSU2tyaf+U7Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T22:48:19.232588Z","bundle_sha256":"86573ea1bcf3071d05193c9663f2343f41e9a8e243c48dbe4a7b46ce097540bb"}}