196 citations · 1.6k across the 143 of their papers we have counts for
4 papers · 2 filters
Fast algorithm for periodic density fitting for Bloch waves
Jianfeng Lu, Lexing Ying
We propose an efficient algorithm for density fitting of Bloch waves for Hamiltonian operators with periodic potential. The algorithm is based on column selection and random Fourie…
Sparsifying preconditioner for soliton calculations
Jianfeng Lu, Lexing Ying
We develop a robust and efficient method for soliton calculations for nonlinear Schrödinger equations. The method is based on the recently developed sparsifying preconditioner comb…
Half-space Kinetic Equations with General Boundary Conditions
Qin Li, Jianfeng Lu, Weiran Sun
We study half-space linear kinetic equations with general boundary conditions that consist of both given incoming data and various type of reflections, extending our previous work…
Localized density matrix minimization and linear scaling algorithms
Rongjie Lai, Jianfeng Lu
We propose a convex variational approach to compute localized density matrices for both zero temperature and finite temperature cases, by adding an entry-wise regularizati…