Collectivity, chaos, and computers

Details Collectivity, chaos, and computers Collectivity, chaos, and computers

2003-03-31

arxiv.org/abs/nucl-th/0303076v1

Physics

Nuclear Physics

Nuclear Theory

9 pages, invited talk at Computational and Group Theoretical Methods in Nuclear Physics, Playa del Carmen, Mexico, February 18

Scientific paper

Two important pieces of nuclear structure are many-body collective deformations and single-particle spin-orbit splitting. The former can be well-described microscopically by simple SU(3) irreps, but the latter mixes SU(3) irreps, which presents a challenge for large-scale, ab initio calculations on fast modern computers. Nonetheless, SU(3)-like phenomenology remains even in the face of strong mixing. The robustness of band structure is reminiscent of robust, pairing collectivity that arises from random two-body interactions.

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