{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:P7SF65SYG5RQFKRA5AJEDKGKCM","short_pith_number":"pith:P7SF65SY","canonical_record":{"source":{"id":"1210.7972","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-10-30T11:59:18Z","cross_cats_sorted":[],"title_canon_sha256":"02104813e9a1049cd09583e43f90d1828626e9cf5502a2180ed67e0928622926","abstract_canon_sha256":"cd430a35e1e7b5ca3bf0276c575176f2cbe2c5fc146dfa8448f13f58b534ecda"},"schema_version":"1.0"},"canonical_sha256":"7fe45f7658376302aa20e81241a8ca1325465c95909a1a6716c7d7fe8e8d5bc7","source":{"kind":"arxiv","id":"1210.7972","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.7972","created_at":"2026-05-18T03:41:57Z"},{"alias_kind":"arxiv_version","alias_value":"1210.7972v1","created_at":"2026-05-18T03:41:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.7972","created_at":"2026-05-18T03:41:57Z"},{"alias_kind":"pith_short_12","alias_value":"P7SF65SYG5RQ","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"P7SF65SYG5RQFKRA","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"P7SF65SY","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:P7SF65SYG5RQFKRA5AJEDKGKCM","target":"record","payload":{"canonical_record":{"source":{"id":"1210.7972","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-10-30T11:59:18Z","cross_cats_sorted":[],"title_canon_sha256":"02104813e9a1049cd09583e43f90d1828626e9cf5502a2180ed67e0928622926","abstract_canon_sha256":"cd430a35e1e7b5ca3bf0276c575176f2cbe2c5fc146dfa8448f13f58b534ecda"},"schema_version":"1.0"},"canonical_sha256":"7fe45f7658376302aa20e81241a8ca1325465c95909a1a6716c7d7fe8e8d5bc7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:41:57.480058Z","signature_b64":"/qbf8+rVlkAR13sz0h4SBf2VENkcTk4bG/gwufi+yaUzJIt6eIuAufJg5VGaERsKDYgOSmJJCpKQby5ZENVdDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7fe45f7658376302aa20e81241a8ca1325465c95909a1a6716c7d7fe8e8d5bc7","last_reissued_at":"2026-05-18T03:41:57.479398Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:41:57.479398Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.7972","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":"2026-05-18T03:41:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dqvPMyytKic48KDNoojq9RBrKqL2vXtifcuEuyPeHv0ZdS3o7KJaGSEP3BQl9TiHSYe1ipb1yrVMkZDRI3G7Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T11:46:37.989047Z"},"content_sha256":"bf6dcc8e38e80aa9a6a64241fd9ad858e18c01d6152892e85ed717404cd9e2f5","schema_version":"1.0","event_id":"sha256:bf6dcc8e38e80aa9a6a64241fd9ad858e18c01d6152892e85ed717404cd9e2f5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:P7SF65SYG5RQFKRA5AJEDKGKCM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Robust control pulses design for electron shuttling in solid state devices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Jun Zhang, K. Birgitta Whaley, Loren Greenman, Xiaotian Deng","submitted_at":"2012-10-30T11:59:18Z","abstract_excerpt":"In this paper we study robust pulse design for electron shuttling in solid state devices. This is crucial for many practical applications of coherent quantum mechanical systems. Our objective is to design control pulses that can transport an electron along a chain of donors, and also make this process robust to parameter uncertainties. We formulate it as a set of optimal control problems on the special unitary group SU(n), and derive explicit expressions for the gradients of the aggregate transfer fidelity. Numerical results for a donor chain of ionized phosphorus atoms in bulk silicon demonst"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.7972","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":"2026-05-18T03:41:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QfkL4Ku06m4F1IjkCcI1LsaBRq6/RRxgAtpVBozvwfgggA6ZXY7NC93vr4E1AvkL1R5SRFB8zefwozn2zwC0Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T11:46:37.989407Z"},"content_sha256":"57755c63704c48755638816b1d9d71867bbc51e875bce520e10cd4033094ce38","schema_version":"1.0","event_id":"sha256:57755c63704c48755638816b1d9d71867bbc51e875bce520e10cd4033094ce38"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P7SF65SYG5RQFKRA5AJEDKGKCM/bundle.json","state_url":"https://pith.science/pith/P7SF65SYG5RQFKRA5AJEDKGKCM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P7SF65SYG5RQFKRA5AJEDKGKCM/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":"2026-06-22T11:46:37Z","links":{"resolver":"https://pith.science/pith/P7SF65SYG5RQFKRA5AJEDKGKCM","bundle":"https://pith.science/pith/P7SF65SYG5RQFKRA5AJEDKGKCM/bundle.json","state":"https://pith.science/pith/P7SF65SYG5RQFKRA5AJEDKGKCM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P7SF65SYG5RQFKRA5AJEDKGKCM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:P7SF65SYG5RQFKRA5AJEDKGKCM","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":"cd430a35e1e7b5ca3bf0276c575176f2cbe2c5fc146dfa8448f13f58b534ecda","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-10-30T11:59:18Z","title_canon_sha256":"02104813e9a1049cd09583e43f90d1828626e9cf5502a2180ed67e0928622926"},"schema_version":"1.0","source":{"id":"1210.7972","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.7972","created_at":"2026-05-18T03:41:57Z"},{"alias_kind":"arxiv_version","alias_value":"1210.7972v1","created_at":"2026-05-18T03:41:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.7972","created_at":"2026-05-18T03:41:57Z"},{"alias_kind":"pith_short_12","alias_value":"P7SF65SYG5RQ","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"P7SF65SYG5RQFKRA","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"P7SF65SY","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:57755c63704c48755638816b1d9d71867bbc51e875bce520e10cd4033094ce38","target":"graph","created_at":"2026-05-18T03:41:57Z","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 paper we study robust pulse design for electron shuttling in solid state devices. This is crucial for many practical applications of coherent quantum mechanical systems. Our objective is to design control pulses that can transport an electron along a chain of donors, and also make this process robust to parameter uncertainties. We formulate it as a set of optimal control problems on the special unitary group SU(n), and derive explicit expressions for the gradients of the aggregate transfer fidelity. Numerical results for a donor chain of ionized phosphorus atoms in bulk silicon demonst","authors_text":"Jun Zhang, K. Birgitta Whaley, Loren Greenman, Xiaotian Deng","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-10-30T11:59:18Z","title":"Robust control pulses design for electron shuttling in solid state devices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.7972","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:bf6dcc8e38e80aa9a6a64241fd9ad858e18c01d6152892e85ed717404cd9e2f5","target":"record","created_at":"2026-05-18T03:41:57Z","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":"cd430a35e1e7b5ca3bf0276c575176f2cbe2c5fc146dfa8448f13f58b534ecda","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-10-30T11:59:18Z","title_canon_sha256":"02104813e9a1049cd09583e43f90d1828626e9cf5502a2180ed67e0928622926"},"schema_version":"1.0","source":{"id":"1210.7972","kind":"arxiv","version":1}},"canonical_sha256":"7fe45f7658376302aa20e81241a8ca1325465c95909a1a6716c7d7fe8e8d5bc7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7fe45f7658376302aa20e81241a8ca1325465c95909a1a6716c7d7fe8e8d5bc7","first_computed_at":"2026-05-18T03:41:57.479398Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:41:57.479398Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/qbf8+rVlkAR13sz0h4SBf2VENkcTk4bG/gwufi+yaUzJIt6eIuAufJg5VGaERsKDYgOSmJJCpKQby5ZENVdDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:41:57.480058Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.7972","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bf6dcc8e38e80aa9a6a64241fd9ad858e18c01d6152892e85ed717404cd9e2f5","sha256:57755c63704c48755638816b1d9d71867bbc51e875bce520e10cd4033094ce38"],"state_sha256":"1fdad4c9527864e3211b469a3173e58ed023ea4c27fba091ab070da8960ed03f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"flWaatUqZW3rmxqlEexZ6HZAGGC/rwV9Jr6SBaOneUOLhyvF6hxCq5aiwHsgaSa+U2juDOx2PA8OXMNpYF/6Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T11:46:37.991393Z","bundle_sha256":"60c59b14deba7ba598161c412cc038df90513e30dbac8f9431f98b0440ca0d59"}}