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Mean-field analysis of interacting boson models with random interactions

R. Bijker·A. Frank
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Abstract

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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R. Bijker, A. Frank. 2001-11-05. Mean-field analysis of interacting boson models with random interactions. https://doi.org/10.1103/physrevc.64.061303

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