Eigenvector Continuation in Nuclear Physics

The nuclear physics landscape appears today as a sequence of effective field theories (EFTs) connected to the Standard Model through symmetries and Lattice QCD simulations. Tremendous success has been achieved in describing significant parts of the nuclear chart in terms of interactions derived from EFT, but many challenges and open questions remain on the path to theoretically predicting nuclear structure and reactions with high accuracy and fully quantified uncertainties.  A new technique called "eigenvector continuation (EC)" has recently been developed as a means to address physics problems which are otherwise not feasible to solve.  Based on analytic function theory, EC exploits small amounts of information contained in eigenvectors far away (in some parameter space) from the physical point of interest, enabling a robust extrapolation to this point.  In this talk I will discuss two particular ways in which EC can help address the challenges mentioned at the outset.

Zoom link available upon request at physics@wustl.edu.
Post-docs and students' Q&A with the speaker starts at 2:15 pm.  Contact Garrett King for the Q&A Zoom link.