Non-Hydrodynamic Phenomena Near Plasma Interfaces

Explore advanced plasma physics modeling through this 47-minute conference talk examining non-hydrodynamic phenomena at plasma interfaces in fusion target systems. Learn how traditional hydrodynamic approaches fail to capture the complex stochastic fluctuations and heterogeneous dynamics occurring at heated interfaces between plastic ablators and deuterium-tritium fuel layers in inertial confinement fusion capsules. Discover a groundbreaking multiscale stochastic approach to orbital-free density functional theory molecular dynamics (OFDFT-MD) simulations that bridges atomic, ionic, and continuum scales while explicitly incorporating fluctuations and randomness. Understand how this innovative methodology enables simulations on micron length scales and tens of picosecond timescales, exceeding current computational capabilities by orders of magnitude. Examine newly observed phenomena including stochastic charge separation, correlated ion transport pathways, and hydrogen jetting dynamics that cannot be captured by conventional mean-field descriptions or deterministic hydrodynamic simulations. Gain insights into how electrochemical modeling approaches can be adapted to provide new understanding of fusion target interface physics and inform the development of interaction kernels for multi-scale fusion simulations, addressing the significant challenges posed by extreme spatiotemporal variations in temperature, density, and charge distributions in fusion environments.