量子计算机
马尔可夫过程
集合(抽象数据类型)
计算
度量(数据仓库)
统计物理学
国际商用机器公司
计算机科学
量子
算法
物理
数学
量子力学
统计
光学
数据库
程序设计语言
作者
Joshua Morris,Felix A. Pollock,Kavan Modi
标识
DOI:10.1142/s123016122250007x
摘要
We measure and quantify non-Markovian effects in IBM's Quantum Experience. Specifically, we analyze the temporal correlations in a sequence of gates by characterizing the performance of a gate conditioned on the gate that preceded it. With this method, we estimate (i) the size of fluctuations in the performance of a gate, i.e., errors due to non-Markovianity; (ii) the length of the memory; and (iii) the total size of the memory. Our results strongly indicate the presence of non-trivial non-Markovian effects in almost all gates in the universal set. However, based on our findings, we discuss the potential for cleaner computation by adequately accounting the non-Markovian nature of the machine.
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