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arXiv 2102.09227quant-ph
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最优控制下固体自旋普适完整量子计算的实验实现

Experimental implementation of universal holonomic quantum computation on solid-state spins with optimal control

Yang Dong, Shao-Chun Zhang, Yu Zheng, Hao-Bin Lin, Long-Kun Shan, Xiang-Dong Chen, Wei Zhu, Guan-Zhong Wang, Guang-Can Guo, Fang-Wen Sun

摘要:

实验实现一组具有高保真度的通用量子逻辑门是量子信息处理的关键,而量子系统与环境之间不可避免的相互作用一直是量子信息处理的挑战。几何量子计算是噪声免疫的,因此提供了一种鲁棒的方法来提高控制保真度。在这里,我们实验实现了最近提出的可扩展的非绝热完整量子计算与固体自旋在钻石在室温下,它保持了灵活性和弹性对退相干和系统控制错误。与以前的几何方法相比,实验上提高了完整单量子比特和双量子比特量子逻辑门的通用集合的量子效率。因此,这项工作使容错可扩展几何量子计算在现实系统中的重要一步。

英文摘要:

Experimental realization of a universal set of quantum logic gates with high-fidelity is critical to quantum information processing, which is always challenging by inevitable interaction between the quantum system and environment. Geometric quantum computation is noise immune, and thus offers a robust way to enhance the control fidelity. Here, we experimentally implement the recently proposed extensible nonadiabatic holonomic quantum computation with solid spins in diamond at room-temperature, which maintains both flexibility and resilience against decoherence and system control errors. Compared with previous geometric method, the fidelities of a universal set of holonomic single-qubit and two-qubit quantum logic gates are improved in experiment. Therefore, this work makes an important step towards fault-tolerant scalable geometric quantum computation in realistic systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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