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A structure preserving Lanczos algorithm for computing the optical absorption spectrum
Meiyue Shao, Felipe H. da Jornada, Lin Lin +3
We present a new structure preserving Lanczos algorithm for approximating the optical absorption spectrum in the context of solving full Bethe--Salpeter equation without Tamm--Danc…
Low Rank Approximation in Approximation
Meiyue Shao, Lin Lin, Chao Yang +4
The single particle energies obtained in a Kohn--Sham density functional theory (DFT) calculation are generally known to be poor approximations to electron excitation energies that…
Structure Preserving Parallel Algorithms for Solving the Bethe-Salpeter Eigenvalue Problem
Meiyue Shao, Felipe H. da Jornada, Chao Yang +2
The Bethe-Salpeter eigenvalue problem is a dense structured eigenvalue problem arising from discretized Bethe-Salpeter equation in the context of computing exciton energies and sta…