@article{Vary2009a,
abstract = {The structure and reactions of light nuclei represent fundamental and formidable challenges for microscopic theory based on realistic strong interaction potentials. Several ab initio methods have now emerged that provide nearly exact solutions for some nuclear properties. The ab initio no core shell model (NCSM) and the no core full configuration (NCFC) method, frame this quantum many-particle problem as a large sparse matrix eigenvalue problem where one evaluates the Hamiltonian matrix in a basis space consisting of many-fermion Slater determinants and then solves for a set of the lowest eigenvalues and their associated eigenvectors. The resulting eigenvectors are employed to evaluate a set of experimental quantities to test the underlying potential. For fundamental problems of interest, the matrix dimension often exceeds 10 10 and the number of nonzero matrix elements may saturate available storage on present-day leadership class facilities. We survey recent results and advances in solving this large sparse matrix eigenvalue problem. We also outline the challenges that lie ahead for achieving further breakthroughs in fundamental nuclear theory using these ab initio approaches. {\textcopyright} 2009 IOP Publishing Ltd.},
author = {Vary, James P. and Maris, Pieter and Ng, Esmond and Yang, Chao and Sosonkina, Masha},
doi = {10.1088/1742-6596/180/1/012083},
issn = {17426596},
journal = {Journal of Physics: Conference Series},
number = {1},
title = {{Ab initio nuclear structure - The large sparse matrix eigenvalue problem}},
volume = {180},
year = {2009}
}

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