Related Experiment Video
Updated: May 26, 2025

Author Spotlight: Universal Molecular Retention with 11-Fold Expansion Microscopy
Published on: October 6, 2023
Augmentation of Universal Potentials for Broad Applications
Joe Pitfield1, Florian Brix1, Zeyuan Tang1
1Aarhus University, Center for Interstellar Catalysis, Department of Physics and Astronomy, DK-8000 Aarhus C, Denmark.
Abstract:
Universal potentials open the door for DFT level calculations at a fraction of their cost. We find that for application to systems outside the scope of its training data, pretrained CHGNet [Deng et al., Nat. Mach. Intell. 5, 1031 (2023)] has the potential to succeed out of the box, but can also fail significantly in predicting the ground state configuration. We demonstrate that via fine-tuning or a Δ-learning approach it is possible to augment the overall performance of universal potentials for specific cluster and surface systems. We utilize this to investigate and explain experimentally observed defects in the Ag(111)-O surface reconstruction and explain the mechanics behind their formation.
Related Concept Videos
Thermodynamic Potentials
Propagation of Action Potentials
Neurons (nerve cells) have a resting membrane potential, with a slightly negative charge inside compared to outside. This is maintained by ion channels, such as sodium (Na+) and potassium (K+) channels, which control the flow of ions. When a stimulus, like a touch or a signal from another neuron, triggers the neuron, sodium channels open, allowing sodium ions to...
Ampere-Maxwell's Law: Problem-Solving
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
Types of Potential Energy
Long-term Potentiation
Induced Electric Fields: Applications

