post-newtonian

NRPyPN: Validated Post-Newtonian Expressions for Numerical Relativity

Emergent spacetime geometry from the Dirac phase field — exact N-body solutions, dark matter without new particles, quantum-corrected GR

Federated N-body dynamics in Rust: force perturbations as independent operator crates, CI-gated validation against REBOUND, bit-reproducible across platforms

Multi-scale parameter sensitivity analysis for spacetime metrics. Studies parameter dependencies, stability regions, and sensitivity coefficients in relativistic field configurations.

A binary black hole merger simulated from post-Newtonian dynamics up, in the browser. Brill-Lindquist strong-field lensing, a circumbinary disk with exact Doppler beaming, and the gravitational wave field.

Interactive GW170817 neutron-star merger simulation: post-Newtonian inspiral physics, gravitational-wave chirp audio, WebGL visualization

Real-time 2D gravity sandbox with causal propagation (finite c), GW-strain heatmaps, and a virtual LIGO probe. Numba JIT, CPU-only.

Don't read it, because you may never be the same again.

Attempt to reimplement JPL Ephemerides

Post-Newtonian inspiral simulator for supermassive black hole binaries (1e5 to 1e10 solar masses) against the NANOGrav and LISA sensitivity curves, with optical detectability.

Final project for Physics 561: Adv. Computational Physics comparing direct measurement in simulation to theoretical predictions of gravitational wave frequencies in weak-field binaries

computational investigations of (modified) gravity

Modular State Translocator and digital twin for universal 230-space-group matter folding, neutrino-free Segrè transmutation, and multi-kiloton de-rendering, featuring the 5th-Gen autopoietic SHBT-MAR-312X reactor and anyon-braid quine replicator.

VORTEX is a browser-based Post-Newtonian compact-object dynamics sandbox with real-time WebGL visualization, GW-inspired diagnostics, and interactive astrophysical scenarios.

Orbit propagation with some general relativity effects.

Temporal Equivalence Principle: Lunar Laser Ranging and the Nordtvedt Effect — Analysis of 26,207 INPOP19a LLR normal points: two-branch solar screening satisfies Cassini (|γ_PPN−1|=4.32×10⁻⁸) and suppresses direct scalar force to −0.143 μm, while the BCRS→GCRS clock-frame ceiling (−4.85 mm cos D) matches the −5.08±0.72 mm residual within 0.31σ.

High-precision peer-verifiable computational engine for relativistic astrodynamics and spaceflight.