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arXiv 2109.05136quant-phcs.ITeess.SPmath.IT
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一种有效的量子计算噪声抑制技术

Efficient Noise Mitigation Technique for Quantum Computing

Ali Shaib, Mohamad H. Naim, Mohammed E. Fouda, Rouwaida Kanj, Fadi Kurdahi

摘要:

量子计算机已经能够解决超出当前计算机能力的问题。然而,这需要处理由这些系统中的不期望的交互引起的噪声。已经提出了几种协议来解决有效和准确的量子噪声分析和减轻。在这项工作中,我们提出了一种新的协议,有效地估计噪声量子设备的平均输出用于量子噪声缓解。多量子比特系统的平均行为近似为泡利通道的特殊形式,其中Clifford门用于估计不同深度的电路的平均输出。特征泡利信道的错误率,状态准备和测量误差,然后用于构建不同深度的输出,从而消除了对大型模拟的需要,并实现有效的缓解。我们证明了所提出的协议在四个IBM Q 5量子比特量子设备的效率。我们的方法证明了有效的噪声特性提高了准确性。我们报告了高达88%和69%的改进所提出的方法相比,未减轻,和纯测量误差缓解的方法,分别。

英文摘要:

Quantum computers have enabled solving problems beyond the current computers' capabilities. However, this requires handling noise arising from unwanted interactions in these systems. Several protocols have been proposed to address efficient and accurate quantum noise profiling and mitigation. In this work, we propose a novel protocol that efficiently estimates the average output of a noisy quantum device to be used for quantum noise mitigation. The multi-qubit system average behavior is approximated as a special form of a Pauli Channel where Clifford gates are used to estimate the average output for circuits of different depths. The characterized Pauli channel error rates, and state preparation and measurement errors are then used to construct the outputs for different depths thereby eliminating the need for large simulations and enabling efficient mitigation. We demonstrate the efficiency of the proposed protocol on four IBM Q 5-qubit quantum devices. Our method demonstrates improved accuracy with efficient noise characterization. We report up to 88\% and 69\% improvement for the proposed approach compared to the unmitigated, and pure measurement error mitigation approaches, respectively.

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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