论文标题
误差缓解增加了量子计算机的有效量子体积
Error mitigation increases the effective quantum volume of quantum computers
论文作者
论文摘要
量子体积是一个单数度量标准，它宽松地报告了量子计算机上可用量子的数量。尽管对基础硬件的改进是增加量子量的直接手段，但指标是“全堆栈”，并且通过改进软件（尤其是编译器）也可以增加。我们通过证明缓解误差（一种间接汇编）增加了几台量子计算机的有效量子体积来扩展后一个方向。重要的是，在采集相同数量的总体样本时会发生这种增加。我们鼓励采用量子体积作为评估错误缓解技术性能的基准。
Quantum volume is a single-number metric which, loosely speaking, reports the number of usable qubits on a quantum computer. While improvements to the underlying hardware are a direct means of increasing quantum volume, the metric is "full-stack" and has also been increased by improvements to software, notably compilers. We extend this latter direction by demonstrating that error mitigation, a type of indirect compilation, increases the effective quantum volume of several quantum computers. Importantly, this increase occurs while taking the same number of overall samples. We encourage the adoption of quantum volume as a benchmark for assessing the performance of error mitigation techniques.
