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Protecting Quantum Gates from Arbitrary Single- and Two-Qubit Errors

delete2025-05-14
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PRE
AI
G
Gangcheng Wang
C
Chunfeng Wu
C
Chunfang Sun
X
Xun‐Li Feng
DOI:10.1002/qute.202500041delete
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摘要

摘要

En 中文
探索了通过合理设计的动力学解耦(DD)脉冲来保护量子门免受任意单比特和双比特噪声的影响。所提出的动力学解耦方法是将由σ<^>{x}_{j,k}、σ<^>{x}_{j}σ<^>{x}_{k}构成的脉冲序列与由σ<^>{z}_{j,k}、σ<^>{z}_{j}σ<^>{z}_{k}构成的另一序列进行级联。两个序列的级联产生所需的脉冲以对抗任何单比特和双比特误差。该方法的成功依赖于调整系统参数或相互作用项的能力,这可以在不同物理系统中实现,包括离子阱和超导量子比特。最后,通过数值方法探索了该方法在上述随时间变化的误差下的性能,并展示了该方法提供的优越保护。因此,该方法是在物理量子比特层面保护量子门的重要进展。
Keyword:
dynamical decoupling
quantum gate
single-qubit error
two-qubit error

期刊

A
Advanced Quantum Technologies
IF:
4.3
论文数:
527
被引数:
3.2K

机构

N
north east normal univ
学者数:
8
论文数: 1
被引数: 1
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