High-Pressure Materials, Inertial Fusion, and Hydride Superconductivity
This community investigates the behavior of matter under extreme pressure and temperature, focusing on how these conditions alter crystal structures and electronic properties. The work centers on three main areas: developing materials for inertial confinement fusion, understanding the physics of dense plasmas, and discovering high-temperature superconductors in hydrogen-rich compounds.
The research relies heavily on diamond anvil cells, shock compression techniques, and x-ray diffraction to probe phase transitions in dense matter. A significant portion of the work involves density functional theory and molecular dynamics simulations to model these extreme environments. Specific applications include the design of fusion targets and the synthesis of hydride superconductors, such as calcium and lanthanum hydrides, which exhibit superconductivity at high temperatures under pressure. The community also explores the stability of materials like tungsten and beryllium under these conditions, often using machine learning to accelerate the search for new stable phases.
The largest share of the community's output is found in helium research, accounting for 0.9% of all helium research, and 861 papers here. Hydrogen research also represents a significant portion, with 2,621 papers contributing to 0.5% of all hydrogen research.
The community comprises 19,568 papers, published predominantly in Physical Review B, Physics of Plasmas, and the Journal of Applied Physics.
Recent work continues to focus on the theoretical limits of conventional superconductivity at ambient pressure and the development of active learning workflows for inverse material design. Papers from 2025 and 2026 also address the status and challenges of inertial confinement fusion, as well as the electronic correlations in high-pressure cerium hydrides.