Basis truncation schemes in the symplectic no-core configuration interaction framework
Zhou Zhou, Graduate Student, University of Notre Dame
The no-core configuration interaction (NCCI) framework, also known as the no-core shell model, is an ab initio method predicting properties of light nuclei from the underlying internucleon interaction. However, the dimension of the NCCI model space rapidly increases with the maximal number of allowed excitation oscillator quanta and the number of nucleons, which limits the convergence of calculated observables that can be achieved in practice. To obtain more converged results we can make use of the approximate Sp(3,R) symplectic symmetry of the nuclear many-body problem by working in a basis organized according to this symmetry and truncating the basis by symmetry properties. This seminar presents different basis truncation schemes in the symplectic NCCI framework and their effect on the dimension of the model space and the convergence of calculated observables.
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title TBA
Jakub Herko, Graduate Student, University of Notre Dame
abstract forthcoming
Hosted by Prof. Caprio
Presented both in person and via zoom. Please email nsladmin@nd.edu for zoom link.
Originally published at physics.nd.edu.