2 papers
cond-mat.str-el2021
Tree tensor-network real-time multiorbital impurity solver: Spin-orbit coupling and correlation functions in SrRuO
X. Cao, Y. Lu, P. Hansmann +1
We present a tree tensor-network impurity solver suited for general multiorbital systems. The network is constructed to efficiently capture the entanglement structure and symmetry…
cond-mat.str-el2019
Natural-Orbital Impurity Solver and Projection Approach for Green's Function
Y. Lu, X. Cao, P. Hansmann +1
We extend a previously proposed rotation and truncation scheme to optimize quantum Anderson impurity calculations with exact diagonalization [PRB 90, 085102 (2014)] to density-matr…