标题： 驱动开放量子系统的自适应旋转波近似 显示英文标题

标题： Adaptive Rotating-Wave Approximation for Driven Open Quantum Systems

摘要： 我们提出了一种数值方法，用于近似描述受外驱动影响的开放量子系统Lindblad主方程的长时间渐近解$\rho_\infty(t)$。 所提出的方案利用微扰理论根据各驱动项的动力学相关性对其排序，并自适应地确定有效哈密顿量。 在构造的旋转参考系中，$\rho_\infty$被近似为一个时间无关的非平衡稳态。 这一稳态比实验室框架下系统的长时间渐近演化更容易用数值计算得到。 我们通过模拟重 fluxonium 设备的近期传输测量来展示该方法的应用，由于存在寿命约为毫秒的亚稳态，普通的时间相关模拟对此极具挑战性。 显示英文摘要

摘要： We present a numerical method to approximate the long-time asymptotic solution $\rho_\infty(t)$ to the Lindblad master equation for an open quantum system under the influence of an external drive. The proposed scheme uses perturbation theory to rank individual drive terms according to their dynamical relevance, and adaptively determines an effective Hamiltonian. In the constructed rotating frame, $\rho_\infty$ is approximated by a time-independent, nonequilibrium steady-state. This steady-state can be computed with much better numerical efficiency than asymptotic long-time evolution of the system in the lab frame. We illustrate the use of this method by simulating recent transmission measurements of the heavy-fluxonium device, for which ordinary time-dependent simulations are severely challenging due to the presence of metastable states with lifetimes of the order of milliseconds.