标题： 基于影响泛函矩阵乘积态的稳态动力学平均场理论 显示英文标题

标题： Steady-state dynamical mean field theory based on influence functional matrix product states

摘要： 我们实现了最近开发的影响泛函矩阵乘积态方法作为平衡和非平衡动力学平均场理论（DMFT）计算单带Hubbard模型的杂质求解器。 该方法在适度的数值成本下，能够对金属态进行数值精确描述，而无需尖锐的谱特征。 具有窄准粒子或自旋极化子峰的系统以及低温莫特绝缘体则更具挑战性，因为这些模拟需要长的时间轨迹或高的键维数。 一个有前景的应用领域是非平衡稳态的DMFT模拟，我们通过光掺杂莫特系统的长期存在的双子和空穴态的计算结果进行了演示。 显示英文摘要

摘要： We implement the recently developed influence functional matrix product states approach as impurity solver in equilibrium and nonequilibrium dynamical mean field theory (DMFT) calculations of the single-band Hubbard model. The method yields numerically exact descriptions of metallic states without sharp spectral features, at a moderate numerical cost. Systems with narrow quasiparticle or spin-polaron peaks, as well as low-temperature Mott insulators provide more challenges, since these simulations require long time contours or high bond dimensions. A promising field of application is the DMFT simulation of nonequilibrium steady states, which we demonstrate with results for photo-doped Mott systems with long-lived doublon and holon populations.