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新的草图断层扫描方法增强了量子态估计

作者 PulseAugur 编辑部 · [1 个来源] ·

研究人员开发了一种名为草图断层扫描（Sketch Tomography）的新型量子态层析成像程序，它将经典阴影协议与矩阵乘积态（MPS）相结合。该方法通过执行可观测量估计来估计量子态密度矩阵的张量分量。该程序已被证明可以收敛，并且其样本复杂度与系统大小成二次方关系，与标准的经典阴影协议和最大似然估计相比，为中等大小的子系统提供了更准确的估计。 AI

排序理由 这是一篇关于量子态层析成像新方法的学术论文。[lever_c_demoted from research: ic=1 ai=0.1]

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新的草图断层扫描方法增强了量子态估计

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这是一篇关于量子态层析成像新方法的学术论文。[lever_c_demoted from research: ic=1 ai=0.1]
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报道来源 [1]

  1. arXiv stat.ML TIER_1 English(EN) · Xun Tang, Haoxuan Chen, Yuehaw Khoo, Lexing Ying ·

    Sketch Tomography: Hybridizing Classical Shadow and Matrix Product State

    arXiv:2512.03333v2 Announce Type: replace-cross Abstract: We introduce Sketch Tomography, an efficient procedure for quantum state tomography based on the classical shadow protocol used for quantum observable estimations. The procedure applies to the case where the ground truth q…

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