论文标题
超导量子系统的量子最佳脉冲控制的方法和结果
Methods and Results for Quantum Optimal Pulse Control on Superconducting Qubit Systems
论文作者
论文摘要
当前嘈杂的中间尺度量子（NISQ）设备的有效使用通常受到与环境相互作用并影响量子门的保真度引起的噪声。在Transmon Qubit系统中，可以通过应用可以最大程度地减少环境噪声影响的对照脉冲来提高量子门的保真度。在这项工作中，我们采用物理引导的量子最佳控制策略来设计最佳的脉冲驱动量子门在超导量子系统上。我们通过使用OpenPulse API对IBM Q硬件进行实验来测试结果。我们将脉搏优化量子门的性能与默认量子门进行比较，并表明优化的脉冲可以提高量子门的忠诚度，尤其是单量门门。我们讨论我们在工作中遇到的挑战，并指出未来可能的改进。
The effective use of current Noisy Intermediate-Scale Quantum (NISQ) devices is often limited by the noise which is caused by interaction with the environment and affects the fidelity of quantum gates. In transmon qubit systems, the quantum gate fidelity can be improved by applying control pulses that can minimize the effects of the environmental noise. In this work, we employ physics-guided quantum optimal control strategies to design optimal pulses driving quantum gates on superconducting qubit systems. We test our results by conducting experiments on the IBM Q hardware using their OpenPulse API. We compare the performance of our pulse-optimized quantum gates against the default quantum gates and show that the optimized pulses improve the fidelity of the quantum gates, in particular the single-qubit gates. We discuss the challenges we encountered in our work and point to possible future improvements.
