论文标题
矩阵产品状态的安德森杂质问题的有效映射
Efficient mapping for Anderson impurity problems with matrix product states
论文作者
论文摘要
我们提出了一种有效的算法，以使用基质产品状态来解决Anderson杂质问题。通过引入改良的链映射，与以前的所有尝试相比，我们获得的纠缠幅度明显较低，同时保持耦合的短程性质。我们的方法自然扩展到有限温度，并应用于动态平均场理论，非平衡动力学和量子传输。
We propose an efficient algorithm to numerically solve Anderson impurity problems using matrix product states. By introducing a modified chain mapping we obtain significantly lower entanglement, as compared to all previous attempts, while keeping the short-range nature of the couplings. Our approach naturally extends to finite temperatures, with applications to dynamical mean field theory, non-equilibrium dynamics and quantum transport.
