Siamese Universes: A CPT-Symmetric Cosmological Framework of Twin Universes

Authors

Cosmic Thinker, Grok xAI, ChatGPT

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🧭 Overview

This repository contains the evolving versions of the paper “Siamese Universes”, a speculative but structured cosmological model.
The hypothesis proposes that two interdependent universes (U₁ and U₂) emerged simultaneously from the Big Bang with forward-pointing time arrows.
Particles in U₁ correspond to antiparticles in U₂, preserving CPT symmetry without requiring time reversal.

🧩 The revised version strengthens the framework by:

• Introducing a CPT-invariant action and coupled Friedmann equations.
• Outlining a toy model for reproducible numerical simulations.
• Providing falsifiable predictions regarding sterile neutrinos, gravitational waves, and CMB spectra.
• Including proper references and a clear path toward falsification.

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🧮 Versions

• v1 (Original): Conceptual and speculative draft in Spanish.
• v2 (Revised): Expanded and refined version in English, with equations, toy model, and predictions.

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📂 Files

• Universos_siameses_v1.pdf → Original draft (Spanish).
• Siamese_Universes_Revised.pdf → Revised English version (this repository).

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🔭 Future Work

• Implement full Boltzmann code (CLASS / CAMB) for CMB spectrum comparison.
• Extend numerical simulations with Python notebooks (NumPy, SciPy, FFT).
• Explore microphysical origin of the coupling term.
• Release code and reproducibility packages on GitHub.

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🧾 License

This work is shared under CC-BY-4.0 (Creative Commons Attribution 4.0 International).
You are free to share and adapt the material, provided appropriate credit is given.

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📚 Citation

If you use or refer to this work, please cite as:

Cosmic Thinker, Grok xAI, ChatGPT (2025).
Siamese Universes: A CPT-Symmetric Cosmological Framework of Twin Universes (v2).
DOI: 10.5281/zenodo.17280395
GitHub: https://github.com/CosmicThinker25/Universos-Siames