Portal for High-Precision Atomic Data and Computation

In a number of present applications, ranging from studies of fundamental interactions to the development of future technologies, accurate atomic theory is indispensable to the design and interpretation of experiments, with direct experimental measurement of relevant parameters being impossible or infeasible. These data are also in high demand by broader atomic, plasma, astrophysics, and nuclear physics communities. The need for high-precision atomic modeling has increased significantly in recent years with the development of atomic-base quantum technologies for a wide range of fundamental and practical applications. Further rapid advances in applications involving complex atoms will require accurate knowledge of basic atomic properties, most of which remain highly uncertain and difficult to measure experimentally. Moreover, the lack of a reliable theoretical framework hinders the search for further applications of rich, complex atomic structures.

This project aims to bridge the gap between the development of atomic physics research codes and the need for data by the user community. Starting from the prototype codes developed by our group and collaborators, we have been developing open-access atomic software with a user-friendly interface capable of calculating a large volume of high-quality atomic data for various atoms and ions. A scalable and automated data portal with a convenient interface is being developed to provide easy data access. The portal will allow for easy addition of data for new elements and updates of data already provided by the portal. The portal provides energies, wavelengths, transition matrix elements and rates for various transition types, branching ratios, lifetimes, hyperfine constants, polarizabilities, magic wavelengths, and other data. Present Version 2 release of the portal provides data for 25 atoms and ions. We plan to make data for 100 atoms and ions, including high-charged ions, available for the user community. The public availability and ease of use of the developed portal will allow broad use beyond the immediate atomic physics community.