Physics Practical Magic

There’s a new AI that’s officially started dreaming up its own theories about how physics works and then testing them out.

March 25, 2026

Original Paper

The FERMIACC: Agents for Particle Theory

Prateek Agrawal, Nathaniel Craig, Amalia Madden, Iñigo Valenzuela Lombera

arXiv · 2603.22538

The Takeaway

Unlike standard AI that just processes numbers, this 'agentic' system can reason through complex theoretical physics and create new hypotheses for how particles interact. It then validates its own ideas against real-world data, effectively acting as an autonomous scientist capable of discovery without human intervention.

From the abstract

We present the FERMIACC, a scaffolded reasoning model built on OpenAI agents designed to autonomously generate and quantitatively validate theory hypotheses for high energy physics data at scale.