Lawrence Berkeley National Laboratory

Optical spectral peaks are not proof of exciton localization—nanoscale imaging reveals that atomic-scale structural reconstruction and strain are the true drivers of exciton confinement in moiré superlattices.

Dopant site assignments in atom probe tomography can be fundamentally distorted by preferential field evaporation, proving that direct spatial reconstructions risk misidentifying atomic-scale defects without evaporation-field corrections.

Foundation interatomic potentials often suffer from inconsistent benchmarks due to infrastructure fragmentation, but QuAcc eliminates this methodological drift by decoupling pure quantum chemistry workflows from the underlying orchestration engines.

Rapid, zero-setup segmentation of X-ray tomography data can transform how researchers interpret complex material microstructures in real-time.

Achieving competitive computational efficiency in Hartree-Fock theory while allowing for flexible orbital locality could revolutionize molecular simulations.

Widely used approximations for modeling hot-exciton relaxation in semiconductor nanocrystals can fail, but mapping surface hopping (MASH) offers a more reliable alternative.

Turns out language models don't need the whole knowledge graph to generate scientific hypotheses—a compact subgraph often works just as well.

Entangled photons let you selectively excite specific biexciton states in quantum dots, opening new doors for quantum control.

VLMs struggle to interpret quantum computing calibration plots, with many open-weight models *worsening* in performance when given multiple example plots in context.

Injecting local topological structure into neural networks via persistence-based data augmentation unlocks improved performance and interpretability in histopathology image classification and 3D material regression.

Core excitons in NaF decohere in under 8fs, and polarization-controlled attosecond spectroscopy reveals that bright excitons have s-like symmetry while dark excitons have p-like symmetry.

Helium rain in gas giants may be less frequent than we thought, thanks to new simulations that significantly lower the estimated hydrogen-helium demixing temperatures.