Speaker
Description
In recent years, there has been a concentrated effort to improve our understanding of the uncertainties that are inherent to solving the nuclear many-body problem. This work focuses on the implementation of emulators for both few- and many-body nuclear physics problems in order to properly handle these uncertainties. We explore and compare two different emulators for solutions of the three-nucleon Faddeev equations, which allows a determination of the full posterior distribution of the low energy constants describing the nuclear interaction in chiral effective field theory. The resulting distribution of interactions can then be used as input for state of the art emulators for auxiliary-field diffusion Monte Carlo calculations of light nuclei, thus propagating the inherent uncertainties in the nuclear interaction to the final many-body predictions.
| Keyword-1 | Ab initio nuclear theory |
|---|---|
| Keyword-2 | Chiral effective field theory |
| Keyword-3 | Machine learning emulators |