collaborators

8 papers

math.NA2026

Reduced-order modeling of Hamiltonian dynamics based on symplectic neural networks

Yongsheng Chen, Wei Guo, Qi Tang +1

We introduce a novel data-driven symplectic induced-order modeling (ROM) framework for high-dimensional Hamiltonian systems that unifies latent-space discovery and dynamics learnin…

math.NA2026

A Structure-Preserving Decorated Particle Method for the Vlasov-Poisson System

Mandela B. Quashie, J. W. Burby, Andrew J. Christlieb +1

We revisit the Scovel-Weinstein framework (Scovel & Weinstein, CPAM 1994) for reducing the Vlasov-Poisson system while preserving its Hamiltonian structure. Standard particle-in-ce…

physics.plasm-ph2026

Self-mediation of runaway electrons via self-excited wave-wave and wave-particle interactions

Qile Zhang, Yanzeng Zhang, Qi Tang +1

Nonlinear dynamics of runaway electron induced wave instabilities can significantly modify the runaway distribution critical to tokamak operations. Here we present the first-ever f…

physics.comp-ph2026

Learning Generalized Diffusions using an Energetic Variational Approach

Yubin Lu, Xiaofan Li, Chun Liu +2

Extracting governing physical laws from computational or experimental data is crucial across various fields such as fluid dynamics and plasma physics. Many of those physical laws a…

math.NA2025

Structure-Preserving Neural Ordinary Differential Equations for Stiff Systems

Allen Alvarez Loya, Daniel A. Serino, J. W. Burby +1

Neural ordinary differential equations (NODEs) are an effective approach for data-driven modeling of dynamical systems arising from simulations and experiments. One of the major sh…

math.NA2025

Structure-Preserving Transfer of Grad-Shafranov Equilibria to Magnetohydrodynamic Solvers

Rushan Zhang, Golo Wimmer, Qi Tang

Magnetohydrodynamic (MHD) solvers used to study dynamic plasmas for magnetic confinement fusion typically rely on initial conditions that describe force balance, which are provided…