ALADIN v0.7 – Full 3D Axisymmetric Resistive QMHD Model with QED Pair Plasma Effects and Benchmarks

ALADIN v0.7 is the full 3D (r,θ,z) resistive QMHD simulation with quantum electrodynamic (QED) pair plasma effects, confirming self-stabilization in high-current pinches via degenerate pair pressure. Key features: - Full 3D cylindrical geometry with azimuthal resolution (64×48×128 grid) - Conservative energy equation with pdV work, resistive dissipation, pair annihilation heating, viscous heating - Nonlinear azimuthal mode coupling - Hall MHD term for reconnection - Shock capturing viscosity (von Neumann-Richtmyer) - Quantitative tearing mode benchmark (exponential fit + comparison to analytic Sweet-Parker scaling) - Comprehensive diagnostics: energy partition (magnetic/kinetic/thermal/pair), resistivity heating, viscous heating, radiative cooling - Pair loading scan showing suppression threshold at Π ≈ 8 This extends v0.6 (2D axisymmetric base) to full 3D, with energy conservation, mode damping, and quantitative match to theory. Code: Python (NumPy, Matplotlib, tqdm) — robust, adaptive timestepping, error handling. v0.6 base DOI: https://doi.org/10.5281/zenodo.18349402