17 citations · 17 across the 4 of their papers we have counts for
Showing math.NAShow all
3 papers · 1 filter
math.NA2022
Frozen Gaussian Sampling for Scalar Wave Equations
Lihui Chai, Ye Feng, Zhennan Zhou
In this article, we introduce the frozen Gaussian sampling (FGS) algorithm to solve the scalar wave equation in the high-frequency regime. The FGS algorithm is a Monte Carlo sampli…
math.NA2021
Seismic Tomography with Random Batch Gradient Reconstruction
Yixiao Hu, Lihui Chai, Zhongyi Huang +1
Seismic tomography solves high-dimensional optimization problems to image subsurface structures of Earth. In this paper, we propose to use random batch methods to construct the gra…
math.NA2014
A multi-band semiclassical model for surface hopping quantum dynamics
Lihui Chai, Shi Jin, Qin Li +1
In the paper we derive a semiclassical model for surface hopping allowing quantum dynamical non-adiabatic transition between different potential energy surfaces in which cases the…