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Jun, 2024
最优低深度量子信号处理相位估计
Optimal Low-Depth Quantum Signal-Processing Phase Estimation
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Yulong Dong, Jonathan A. Gross, Murphy Yuezhen Niu
TL;DR
基于量子信号处理的相位估计算法能够克服时间相关性错误和量子衰减等挑战,实现超导二比特实验中对不需要的交换角度的估计精度达到前所未有的标准差精度(10^-4 radians),是现有方法进步了两个数量级。
Abstract
quantum effects
like entanglement and coherent amplification can be used to drastically enhance the accuracy of
quantum parameter estimation
beyond classical limits. However, challenges such as decoherence and ti
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