Mean-field analysis of interacting boson models with random interactions

Details Mean-field analysis of interacting boson models with random interactions Mean-field analysis of interacting boson models with random interactions

2001-11-05

arxiv.org/abs/nucl-th/0111009v1

Phys.Rev. C64 (2001) 061303

Physics

Nuclear Physics

Nuclear Theory

8 pages, 4 figures, 2 tables. Physical Review C, in press

Scientific paper

10.1103/PhysRevC.64.061303

We investigate the origin of the regular features observed in numerical studies of the interacting boson model with random interactions, in particular the dominance of L=0 ground states and the occurrence of vibrational and rotational band structures. It is shown that all of these properties can be interpreted and explained in terms of a Hartree-Bose mean-field analysis, in which different regions of the parameter space are associated with geometric shapes. The same conclusions hold for the vibron model.

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