Band structure from random interactions

Details Band structure from random interactions Band structure from random interactions

1999-11-19

arxiv.org/abs/nucl-th/9911067v1

Phys.Rev.Lett. 84 (2000) 420-422

Physics

Nuclear Physics

Nuclear Theory

5 pages, 4 figures, Phys. Rev. Lett., in press

Scientific paper

10.1103/PhysRevLett.84.420

The anharmonic vibrator and rotor regions in nuclei are investigated in the framework of the interacting boson model using an ensemble of random one- and two-body interactions. We find a predominance of L(P)=0(+) ground states, as well as strong evidence for the occurrence of both vibrational and rotational band structures. This remarkable result suggests that such band structures represent a far more general (robust) property of the collective model space than is generally thought.

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