Author

Luis Chacón

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Preprint Oct 2026

Beyond Radiation Hydrodynamics: A Coupled Kinetic Plasma and Radiation Modeling of NIF Polar Direct Drive Capsule

Predictive modeling of inertial-confinement-fusion (ICF) implosions increasingly requires resolving ion-kinetic effects beyond the reach of radiation-hydrodynamics, without sacrificing radiation transport. We present, to our knowledge, the first coupling of a kinetic-ion plasma model to thermal radiation transport. The...

Hans Hammer, W. Taitano, Steven E. Anderson et al. · 0 citations

Preprint Sep 2026

An Energy-Conserving Unstaggered Electromagnetic-Potential Particle-in-Cell Method, Part II: Fully Relativistic Formulation with an Adapted Higuera--Cary Pusher

We develop a fully relativistic extension of the energy-conserving, unstaggered electromagnetic-potential particle-in-cell method introduced in our earlier nonrelativistic work. As in the nonrelativistic generalized-momentum formulation, the fields are advanced by a Crank--Nicolson discretization of the Lorenz-gauge po...

Andrew J. Christlieb, Luis Chacón, Si-Ning Gong · 0 citations

Preprint Oct 2026

An Implicit, Moment-Conserving Low-Rank Tensor Method for the Hybrid Kinetic-Ion Fluid-Electron Plasma Model

Quasi-neutral hybrid models for simulating plasmas, with kinetic ions and fluid electrons, have shown great promise for approaching the multi-scale nature of plasmas. In this paper we present a novel hybrid scheme for electromagnetic settings that conserves mass, momentum, and energy, employing a low-rank tensor method...

Stephen R. White, A. Stanier, Luis Chacón et al. · 0 citations