7 citations · 9 across the 6 of their papers we have counts for
4 papers · 1 filter
CosmoAgent: AI Agent for Theoretical Cosmology
Stephon Alexander, Loukas Gouskos, Savvas M. Koushiappas +2
We present CosmoAgent, an agentic AI framework using large language models (LLMs) to search for dark-energy and modified-gravity models. We define a covariant grammar that allows L…
Symbiotic Magnetogenesis during Radiation Domination
Stephon Alexander, Ariel Marxena Baksh, Lawrence Edmond +1
We present a late-time magnetogenesis mechanism in which a coupled axion-dilaton system sources a dark gauge field. The dilaton's exponential coupling drives tachyonic ampli…
Autonomous Discovery of Particle Physics Theories from Experimental Data
Stephon Alexander, Benjamin Bradley, Loukas Gouskos +1
The search for physics beyond the Standard Model is hindered by a combinatorial explosion of possible theories. We introduce \textsc{Albert}, a neuro-symbolic artificial intelligen…
Parity-violating Dark Photon Halos
Stephon Alexander, Lawrence Edmond, Cooper Niu
We propose a mechanism for the generation of gravitationally bound dark photon halos during the matter-dominated era. Coupled to an ultralight axion field through a parity-violatin…