{"paper":{"title":"Logical Magic State Preparation with Fidelity Beyond the Distillation Threshold on a Superconducting Quantum Processor","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chao-Yang Lu, Cheng Guo, Cheng-Zhi Peng, Chen Zha, Chong Ying, Dachao Wu, Daojin Fan, Fusheng Chen, Futian Liang, Haoran Qian, Hao Rong, He-Liang Huang, Hong Su, Hui Deng, Huijie Guan, Jiale Yu, Jian-Wei Pan, Jin Lin, Kaili Zhang, Lianchen Han, Ming Gong, Na Li, Qingling Zhu, Shaojun Guo, Shaowei Li, Shiyu Wang, Sirui Cao, Tan He, Tung-Hsun Chung, Xiaobo Zhu, Yangsen Ye, Yiming Zhang, Yong-Heng Huo, Youwei Zhao, Yuan Li, Yulin Wu, Yu Xu, Zuolin Wei","submitted_at":"2023-05-25T12:10:59Z","abstract_excerpt":"Fault-tolerant quantum computing based on surface code has emerged as an attractive candidate for practical large-scale quantum computers to achieve robust noise resistance. To achieve universality, magic states preparation is a commonly approach for introducing non-Clifford gates. Here, we present a hardware-efficient and scalable protocol for arbitrary logical state preparation for the rotated surface code, and further experimentally implement it on the \\textit{Zuchongzhi} 2.1 superconducting quantum processor. An average of \\hhl{$0.8983 \\pm 0.0002$} logical fidelity at different logical sta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.15972","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2305.15972/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}