在被困离子中的Qutrit toric代码和parafermions
Mohsin Iqbal1, Anasuya Lyons2, Chiu Fan Bowen Lo2
1Quantinuum, Leopoldstrasse 180, Munich, Germany.
Nature communications
|July 8, 2025
概括
研究人员使用24个 qutrits开发了一个拓量子代码,实现了超过96.5%的准确性. 这项工作推进了量子计算,通过基于qudit的错误纠正来实现强大的信息存储和处理.
科学领域:
- 量子信息科学 量子信息科学
- 凝聚物质物理学 凝聚物质物理学
- 量子计算是一种量子计算.
背景情况:
- 在强大的量子信息存储和处理中,以拓学顺序排列的状态至关重要.
- 虽然量子位 (量子位) 为拓秩序提供了优势,但实验实现仅限于量子位.
- 之前的实验努力集中在拓状态的基于量子位的格子模型上.
研究的目的:
- 通过实验实现和测量复杂的拓状态使用 qutrits.
- 探索新的缺陷及其操纵超出传统的基于量子比特的拓代码.
- 通过缺陷相互作用和纠转移来证明对拓极点的控制.
主要方法:
- 在一个被困离子量子处理器中,在24 qutrits上准备和测量一个Z_3 toric code基态.
- 为实验实现,将一个qutrit编码为两个量子比特.
- 对抛物线缺陷及其绑定状态的操纵,超出标准量子比特托里克代码.
主要成果:
- 实现了高保真度的Qutrit每次超过96.5%的3%.
- 成功操纵了抛物线缺陷及其结合状态.
- 证明了anyons和缺陷之间的缺陷融合和纠转移.
结论:
- 该研究成功地实现了带有 qutrits 的拓代码,这是超越基于量子比特的系统的重要一步.
- 对新的缺陷和纠转移的操纵为拓极限提供了新的控制机制.
- 这项工作扩大了具有五度自由度的远程纠状态的可能性,这与量子模拟和错误纠正有关.
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