Molecular Simulation
Protein folding funnel diagram illustrating energy landscape

Umbrella Sampling: Monte Carlo Free-Energy Estimation

Torrie and Valleau’s 1977 paper introducing importance sampling with non-physical distributions to overcome the sampling gap problem in Monte Carlo free-energy calculations, particularly for phase transitions.

Molecular Simulation
Schematic showing atom-surface interaction using the method of images

Lennard-Jones on Adsorption and Diffusion on Surfaces

Lennard-Jones’s 1932 theoretical paper applying quantum mechanical potential energy surfaces to gas-solid interactions, providing the first unified framework explaining both physisorption and chemisorption as different regions of the same energy landscape.

Machine Learning
Diagram illustrating knowledge-based agent architecture with knowledge base, reasoning, and action components

Foundations of AI: Knowledge-Based Agents and Logic

Explore the building blocks of classic AI reasoning, from knowledge bases and logic to how systems draw new conclusions from existing knowledge.