negative-mass-simulator
Newtonian Particle with Negative Mass Simulator
This project is a simple 2D N-body simulator written in JavaScript that explores the cosmological implications of negative mass. Inspired by the theories of Andrei Sakharov and Jean-Pierre Petit (Janus Model), it demonstrates how gravitational repulsion from negative mass can lead to the formation of “soap bubble” structures, filaments, and voids.
🌌 Conceptual Overview
The simulation operates on the Janus interaction laws, which differ from standard Newtonian gravity by introducing a “twin world” interaction logic:
| Interaction | Result | Effect in Simulation |
|---|---|---|
| m+ / m+ | Attraction | Standard galactic clumping |
| m- / m- | Attraction | Negative mass forms its own clusters |
| m+ / m- | Repulsion | Matter is pushed away |
Because the matter of opposite sign repel each other, the negative mass occupy the centers of large cosmic voids, acting as the Great Repeller and carving out the “soap bubble” distribution of galaxies.
✨ Features
- Interactive Physics: Uses a velocity-Verlet-style integration for $N$-body motion.
- Janus Logic: Explicitly handles the asymmetrical gravitational laws of the twin-universe model.
- Toroidal Topology: Particles wrap around edges to simulate an infinite, expanding space.
- Generative Origins: Created with the help of AI to visualize complex theoretical physics without manual boilerplate.
📚 References & Further Reading
Andrei Sakharov
- Violation of CP invariance, C asymmetry, and baryon asymmetry of the universe (1967)
- Read the paper (NASA ADS)
- Explores the hypothesis of a “mirror” universe with reversed arrows of time and mass properties.
Jean-Pierre Petit
- Janus Cosmological Model Mathematically & Physically Consistent (2024)
- Janus cosmological model (2021)
- Read the paper (HAL Archives)
- Outlines the specific bimetric equations that allow for the “soap bubble” large-scale structure.
🚀 Usage
1. Structure
Ensure your project has the following files:
index.html: The container with a<canvas>element.demo.js: The simulation logic.
2. Running Locally (CPU)
Simply open your cpu/index.html file in any modern web browser.
3. Running Locally (GPU)
Simply open your gpu/index.html file in any modern web browser.
(make sure to enable WebGPU, e.g. chrome://flags/#enable-unsafe-webgpu).
4. Live preview
License
Apache v2.