The Magnus Expansion as a Tool for Solving the In-Medium Similarity Renormalization Group
- Titus Morris, MSU NSCL/Physics
Tuesday, December 3, 11:00 AM - Theory Seminar
NSCL Seminar Room
Recently, the in-medium similarity renormalization group (IM-SRG) has been used successfully to perform ab-initio calculations of medium mass nuclei. Despite the soft numerical scaling that allows treatment of medium mass nuclei with this method, several technical challenges like inclusion of observables need to be overcome. In this talk, I outline how a novel application of a mathematical tool called the Magnus expansion not only eases the solution of the IM-SRG method, but also gives a way to move forward with the treatment of induced higher body forces and observables. I will also present preliminary results for the homogenous electron gas and closed shell nuclei.