{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:WR3KI4FFTQIBDGUJJV2SGNWKOQ","short_pith_number":"pith:WR3KI4FF","canonical_record":{"source":{"id":"1410.2310","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-08T23:09:15Z","cross_cats_sorted":["cond-mat.other","quant-ph"],"title_canon_sha256":"36d8b7f43712164852453bf66b14b90b330e35b411551e617f218f8be96d5abe","abstract_canon_sha256":"fa83a3927e8fe9874e9246f7c058d450b846af644e8ae5b7698c77fa72b70b97"},"schema_version":"1.0"},"canonical_sha256":"b476a470a59c10119a894d752336ca743e5ef8a19908102ccca0356024ab4c9d","source":{"kind":"arxiv","id":"1410.2310","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.2310","created_at":"2026-05-18T01:36:43Z"},{"alias_kind":"arxiv_version","alias_value":"1410.2310v3","created_at":"2026-05-18T01:36:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.2310","created_at":"2026-05-18T01:36:43Z"},{"alias_kind":"pith_short_12","alias_value":"WR3KI4FFTQIB","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WR3KI4FFTQIBDGUJ","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WR3KI4FF","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:WR3KI4FFTQIBDGUJJV2SGNWKOQ","target":"record","payload":{"canonical_record":{"source":{"id":"1410.2310","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-08T23:09:15Z","cross_cats_sorted":["cond-mat.other","quant-ph"],"title_canon_sha256":"36d8b7f43712164852453bf66b14b90b330e35b411551e617f218f8be96d5abe","abstract_canon_sha256":"fa83a3927e8fe9874e9246f7c058d450b846af644e8ae5b7698c77fa72b70b97"},"schema_version":"1.0"},"canonical_sha256":"b476a470a59c10119a894d752336ca743e5ef8a19908102ccca0356024ab4c9d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:43.615597Z","signature_b64":"UgnZPurpy15JACeLR/DGHufIByqkWfdenJh8qVJq0S+6v7c0S5XGwoJIIbq4kLJgKUmVDV5Pcz7nZ6xIC3bjDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b476a470a59c10119a894d752336ca743e5ef8a19908102ccca0356024ab4c9d","last_reissued_at":"2026-05-18T01:36:43.614916Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:43.614916Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.2310","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:36:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZqhZH7LQuyseLsKLisr2L224kRl7I7ayBO+2WA1T/gROrrL7bIIQQCv9MuzZ1Z43w4T/sLydMYRCnsgninQVBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:36:05.141236Z"},"content_sha256":"cbea2993121424cfbc9b40189b0d05376284e0d6c402f35f19bcb5bfa7aedd6e","schema_version":"1.0","event_id":"sha256:cbea2993121424cfbc9b40189b0d05376284e0d6c402f35f19bcb5bfa7aedd6e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:WR3KI4FFTQIBDGUJJV2SGNWKOQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High Fidelity Singlet-Triplet ${S}$-${T_-}$ Qubits in Inhomogeneous Magnetic Fields","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other","quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Clement H. Wong, M. A. Eriksson, Mark Friesen, S. N. Coppersmith","submitted_at":"2014-10-08T23:09:15Z","abstract_excerpt":"We propose an optimal set of quantum gates for a singlet-triplet qubit in a double quantum dot with two electrons utilizing the $S$-$T_-$ subspace. Qubit rotations are driven by the applied magnetic field and an orthogonal field gradient provided by a micromagnet. We optimize the fidelity of this qubit as a function of magnetic fields, taking advantage of \"sweet spots\" where the rotation frequencies are independent of the energy level detuning, providing protection against charge noise. We simulate gate operations and qubit rotations in the presence of quasistatic noise from charge and nuclear"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.2310","kind":"arxiv","version":3},"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":"2026-05-18T01:36:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qXw0o7u16I5n2fjcnRX7taenjBB7Mnuuo7J/clHymxs2UExgue0BajjvlgEtNNaO6D1akI+FUTff2HfUBUYiCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:36:05.141604Z"},"content_sha256":"27b98c550820d8ebac8887aa614fe2110e4c741e0e92cbe4ec354f82aec877f2","schema_version":"1.0","event_id":"sha256:27b98c550820d8ebac8887aa614fe2110e4c741e0e92cbe4ec354f82aec877f2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WR3KI4FFTQIBDGUJJV2SGNWKOQ/bundle.json","state_url":"https://pith.science/pith/WR3KI4FFTQIBDGUJJV2SGNWKOQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WR3KI4FFTQIBDGUJJV2SGNWKOQ/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":"2026-06-01T06:36:05Z","links":{"resolver":"https://pith.science/pith/WR3KI4FFTQIBDGUJJV2SGNWKOQ","bundle":"https://pith.science/pith/WR3KI4FFTQIBDGUJJV2SGNWKOQ/bundle.json","state":"https://pith.science/pith/WR3KI4FFTQIBDGUJJV2SGNWKOQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WR3KI4FFTQIBDGUJJV2SGNWKOQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:WR3KI4FFTQIBDGUJJV2SGNWKOQ","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":"fa83a3927e8fe9874e9246f7c058d450b846af644e8ae5b7698c77fa72b70b97","cross_cats_sorted":["cond-mat.other","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-08T23:09:15Z","title_canon_sha256":"36d8b7f43712164852453bf66b14b90b330e35b411551e617f218f8be96d5abe"},"schema_version":"1.0","source":{"id":"1410.2310","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.2310","created_at":"2026-05-18T01:36:43Z"},{"alias_kind":"arxiv_version","alias_value":"1410.2310v3","created_at":"2026-05-18T01:36:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.2310","created_at":"2026-05-18T01:36:43Z"},{"alias_kind":"pith_short_12","alias_value":"WR3KI4FFTQIB","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WR3KI4FFTQIBDGUJ","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WR3KI4FF","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:27b98c550820d8ebac8887aa614fe2110e4c741e0e92cbe4ec354f82aec877f2","target":"graph","created_at":"2026-05-18T01:36:43Z","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 propose an optimal set of quantum gates for a singlet-triplet qubit in a double quantum dot with two electrons utilizing the $S$-$T_-$ subspace. Qubit rotations are driven by the applied magnetic field and an orthogonal field gradient provided by a micromagnet. We optimize the fidelity of this qubit as a function of magnetic fields, taking advantage of \"sweet spots\" where the rotation frequencies are independent of the energy level detuning, providing protection against charge noise. We simulate gate operations and qubit rotations in the presence of quasistatic noise from charge and nuclear","authors_text":"Clement H. Wong, M. A. Eriksson, Mark Friesen, S. N. Coppersmith","cross_cats":["cond-mat.other","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-08T23:09:15Z","title":"High Fidelity Singlet-Triplet ${S}$-${T_-}$ Qubits in Inhomogeneous Magnetic Fields"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.2310","kind":"arxiv","version":3},"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:cbea2993121424cfbc9b40189b0d05376284e0d6c402f35f19bcb5bfa7aedd6e","target":"record","created_at":"2026-05-18T01:36:43Z","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":"fa83a3927e8fe9874e9246f7c058d450b846af644e8ae5b7698c77fa72b70b97","cross_cats_sorted":["cond-mat.other","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-08T23:09:15Z","title_canon_sha256":"36d8b7f43712164852453bf66b14b90b330e35b411551e617f218f8be96d5abe"},"schema_version":"1.0","source":{"id":"1410.2310","kind":"arxiv","version":3}},"canonical_sha256":"b476a470a59c10119a894d752336ca743e5ef8a19908102ccca0356024ab4c9d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b476a470a59c10119a894d752336ca743e5ef8a19908102ccca0356024ab4c9d","first_computed_at":"2026-05-18T01:36:43.614916Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:43.614916Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UgnZPurpy15JACeLR/DGHufIByqkWfdenJh8qVJq0S+6v7c0S5XGwoJIIbq4kLJgKUmVDV5Pcz7nZ6xIC3bjDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:43.615597Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.2310","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cbea2993121424cfbc9b40189b0d05376284e0d6c402f35f19bcb5bfa7aedd6e","sha256:27b98c550820d8ebac8887aa614fe2110e4c741e0e92cbe4ec354f82aec877f2"],"state_sha256":"c33babda6c209bf1e784c879d153f6a974544790f00118f9d43cadb613b7e11f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"48AY/SNdxkVCbfCujvmG5N6Mg3mwrr61sioJw6njy1PXLEpP8egn/+0PFwhq14mef03fUS4/mCvDQyEWkUTIDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T06:36:05.143722Z","bundle_sha256":"11faa86ddb944caa44fe3aac35211269282e067840e858756ba7cebb77b92170"}}