论文标题
单品量子退火中开放和嘈杂的量子系统的签名
Signatures of Open and Noisy Quantum Systems in Single-Qubit Quantum Annealing
论文作者
论文摘要
我们提出了一种量子退火协议，该协议可以更有效地探究D-Wave量子退火硬件上单个量子的动力学。该协议使用D-WAVE的H增益时间表功能，该功能允许在退火期间在任意点处纵向磁场快速淬火。这使我们能够区分开放式和封闭的系统动力学以及存在或不存在纵向磁场噪声。我们表明，热场和磁场波动都是需要包含在开放量子系统模型中的关键噪声来源，以重现硬件的输出统计。
We propose a quantum annealing protocol that more effectively probes the dynamics of a single qubit on D-Wave's quantum annealing hardware. This protocol uses D-Wave's h-gain schedule functionality, which allows the rapid quenching of the longitudinal magnetic field at arbitrary points during the anneal. This features enables us to distinguish between open and closed system dynamics as well as the presence or absence of longitudinal magnetic field noise. We show that both thermal and magnetic field fluctuations are key sources of noise that need to be included in an open quantum system model to reproduce the output statistics of the hardware.
