ΛCDM+S - Thermodynamic Cosmology: Simulating The Universe's Expansion Without Dark Energy

Overview

Even after nearly three decades of intense research, cosmology fails to fully explain the physical origin of the universe's accelerated expansion. The standard model of cosmology, ΛCDM, associates this accelerated expansion with dark energy, a hypothetical physical substance. However, its physical nature remains unknown. This project explores how black hole thermodynamics can be used to explain this mysterious acceleration. I tested how well this idea predicts the evolution of the universe by deriving new solutions to the Friedmann equations and analysing them using 500 Monte Carlo simulations, producing over 3.5 million data points. The resulting model produces an agreement of 93.4% relative to ΛCDM, and offers a potential explanation for both the Hubble tension and the SNe Ia residuals. The results suggest that dark energy could be reinterpreted as entropy growth on the cosmic horizon, a prediction that can be tested with upcoming observations from LSST and Euclid.

Awards (5)

• Best in Fair
• Platinum Award
• Challenge Award
• Gold Medal
• Selected for CWSF 2026

Competition history

• CWSF 2026 Aerospace

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