37 citations · 155 across the 12 of their papers we have counts for
12 papers
Unexpected Collisional Rotational Excitation via Long-Range Capture and Orbiting
Dasarath Swaraj, Guodong Zhang, Siting Hou +9
Collisional rotational excitation is a fundamental process in many gaseous environments. The textbook hard-sphere model stipulates that high rotational excitation results from head…
Convergence Analysis of A Second-order Accurate, Linear Numerical Scheme for The Landau-Lifshitz Equation with Large Damping Parameters
Yongyong Cai, Jingrun Chen, Cheng Wang +1
A second order accurate, linear numerical method is analyzed for the Landau-Lifshitz equation with large damping parameters. This equation describes the dynamics of magnetization,…
A second-order numerical method for Landau-Lifshitz-Gilbert equation with large damping parameters
Yongyong Cai, Jingrun Chen, Cheng Wang +1
A second order accurate numerical scheme is proposed and implemented for the Landau-Lifshitz-Gilbert equation, which models magnetization dynamics in ferromagnetic materials, with…
A Machine-Learning Method for Time-Dependent Wave Equations over Unbounded Domains
Changjian Xie, Jingrun Chen, Xiantao Li
Time-dependent wave equations represent an important class of partial differential equations (PDE) for describing wave propagation phenomena, which are often formulated over unboun…
Stereodynamic control of overlapping resonances in cold molecular collisions
Masato Morita, Qian Yao, Changjian Xie +2
Stereodynamic control of resonant molecular collisions has emerged as a new frontier in cold molecule research. Recent experimental studies have focused on weakly interacting molec…
Two improved Gauss-Seidel projection methods for Landau-Lifshitz-Gilbert equation
Panchi Li, Changjian Xie, Rui Du +2
In this paper, we present two improved Gauss-Seidel projection methods with unconditional stability. The first method updates the gyromagnetic term and the damping term simultaneou…
Second-order semi-implicit projection methods for micromagnetics simulations
Changjian Xie, Carlos J. García-Cervera, Cheng Wang +2
Micromagnetics simulations require accurate approximation of the magnetization dynamics described by the Landau-Lifshitz-Gilbert equation, which is nonlinear, nonlocal, and has a n…
Convergence Analysis of A Second-order Semi-implicit Projection Method for Landau-Lifshitz Equation
Jingrun Chen, Cheng Wang, Changjian Xie
The numerical approximation for the Landau-Lifshitz equation, the dynamics of magnetization in a ferromagnetic material, is taken into consideration. This highly nonlinear equation…
The ortho-to-para ratio of HCl: Quasi-classical trajectory calculations and new simulations in light of new observations
Romane Le Gal, Changjian Xie, Eric Herbst +3
Multi-hydrogenated species with proper symmetry properties can present different spin configurations, and thus exist under different spin symmetry forms, labeled as para and ortho…
Final State Resolved Quantum Predissociation Dynamics of SO2(C1B2) and Its Isotopomers via a Crossing with a Singlet Repulsive State
Changjian Xie, Bin Jiang, Jacek Kłos +4
The fragmentation dynamics of predissociative SO2(C1B2) is investigated on an accurate adiabatic potential energy surface (PES) determined from high level ab initio data. This sing…
The ortho-to-para ratio of interstellar NH: Quasi-classical trajectory calculations and new simulations
Romane Le Gal, Eric Herbst, Changjian Xie +2
Based on recent results, the ortho-to-para ratio (OPR) of NH has been measured towards the following high-mass star-forming regions: W31C (G10.6-0.4), W49N (G43.2-0.…
Low temperature rate constants for the N(4S) + CH(X2Πr) reaction. Implications for N2 formation cycles in dense interstellar clouds
Julien Daranlot, Xixi Hu, Changjian Xie +7
Rate constants for the potentially important interstellar N(4S) + CH(X2Πr) reaction have been measured in a continuous supersonic flow reactor over the range 56 K < T < 296 K using…