AUTHOR=Rotureau Jimmy TITLE=Coupled-Cluster Computations of Optical Potential for Medium-Mass Nuclei JOURNAL=Frontiers in Physics VOLUME=Volume 8 - 2020 YEAR=2020 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2020.00285 DOI=10.3389/fphy.2020.00285 ISSN=2296-424X ABSTRACT=Recent progress in the numerical resolution of the nuclear many-body problem and in the development of nuclear Hamiltonians rooted in Quantum Chromodynamics, have opened the door to first-principles computation of nuclear reactions. In this article, we discuss the current status of ab initio calculations of nucleon-nucleus optical potential for medium-mass systems, with a focus on results obtained with the coupled-cluster method.