论文标题
用自动化算法编译的近似量子门
Approximate quantum gates compiling with self-navigation algorithm
论文作者
论文摘要
量子门的编译对于成功的量子算法实现至关重要。环境噪声以及控制脉冲的带宽对精确而快速的量子控制构成了挑战，尤其是在弱的无谐系统中。在这项工作中，我们提出了一种算法，以任意准确性地汇总单量门门。评估结果表明，我们算法产生的总旋转距离明显短于常用的$ u3 $门，然后栅极时间可以有效地缩短。必需的脉冲数量和方案设计的运行时数量缩放为$ \ Mathcal {o} [\ Mathrm {log}（1/ε）] $，带有很小的预成分，表明较低的开销成本。此外，我们探讨了有效性和成本之间的权衡，并找到平衡点。简而言之，我们的工作为使用当代量子技术的有效量子算法实施开辟了新的途径。
The compiling of quantum gates is crucial for the successful quantum algorithm implementations. The environmental noise as well as the bandwidth of control pulses pose a challenge to precise and fast qubit control, especially in a weakly anharmonic system. In this work, we propose an algorithm to approximately compile single-qubit gates with arbitrary accuracy. Evaluation results show that the overall rotation distance generated by our algorithm is significantly shorter than the commonly used $U3$ gate, then the gate time can be effectively shortened. The requisite number of pulses and the runtime of scheme design scale up as $\mathcal{O}[\mathrm{Log}(1/ε)]$ with very small prefactors, indicating low overhead costs. Moreover, we explore the trade-off between effectiveness and cost, and find a balance point. In short, our work opens a new avenue for efficient quantum algorithm implementations with contemporary quantum technology.
