Quadrupole collectivity in random two-body ensembles
Nuclear Theory
2011-09-02 v1
Abstract
We conduct a systematic investigation of the nuclear collective dynamics that emerges in systems with random two-body interactions. We explore the development of the mean field and study its geometry. We investigate multipole collectivities in the many-body spectra and their dependence on the underlying two-body interaction Hamiltonian. The quadrupole-quadrupole interaction component appears to be dynamically dominating in two-body random ensembles. This quadrupole coherence leads to rotational spectral features and thus suggests the formation of the deformed mean-field of a specific geometry.
Cite
@article{arxiv.1105.1669,
title = {Quadrupole collectivity in random two-body ensembles},
author = {Volha Abramkina and Alexander Volya},
journal= {arXiv preprint arXiv:1105.1669},
year = {2011}
}