[Triumf-seminars] TRIUMF Theory Seminar today at 13:00
TRIUMF Seminars
triumf-seminars at lists.triumf.ca
Tue Dec 13 05:00:02 PST 2016
Date/Time: Tue 2016-12-13 at 13:00
Location: Theory Room
Speaker: Anna McCoy (Notre Dame)
Title: The symplectic no-core configuration interaction framework
Abstract: A major challenge in quantitatively predicting nuclear structure directly from realistic nucleon-nucleon interactions, i.e., ab initio, arises due to an explosion in the dimension of the traditional Slater determinant basis as the number of nucleons and included shells increases. The need for including highly excited configurations arises, in large part, because the kinetic energy induces correlations across shells. However, the kinetic energy conserves symplectic symmetry. By combining this symplectic symmetry with the no-core configuration interaction (NCCI) framework, we reduce the size of basis necessary to include these highly correlated states. Moreover, describing the nucleus in this symplectic framework may provide insight into emergence of collective behavior from many-body interactions.
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