论文标题
超导kerr参数振荡器的光子数量的光谱估计值
Spectroscopic estimation of the photon number for superconducting Kerr parametric oscillators
论文作者
论文摘要
量子退火（QA）是解决组合优化问题的一种方法。 Kerr非线性参数振荡器（KPO）是实现质量检查的有前途的设备。当我们使用KPO解决组合优化问题时，有必要精确控制KPO的光子数。在这里，我们提出了一种可行的方法来估计KPO的光子数。我们考虑将辅助量子置量耦合到KPO，并表明辅助量子置量的光谱测量提供了有关KPO的光子数的信息。
Quantum annealing (QA) is a way to solve combinational optimization problems. Kerr nonlinear parametric oscillators (KPOs) are promising devices for implementing QA. When we solve the combinational optimization problems using KPOs, it is necessary to precisely control the photon number of the KPOs. Here, we propose a feasible method to estimate the photon number of the KPO. We consider coupling an ancillary qubit to the KPO and show that spectroscopic measurements on the ancillary qubit provide information on the photon number of the KPO.
