English

Collective behavior in random interaction

Nuclear Theory 2007-05-23 v2

Abstract

Recent investigations have looked at the many-body spectra of random two-body interactions. In fermion systems, such as the interacting shell model, one finds pairing-like spectra, while in boson systems, such as IBM-1, one finds rotational and vibrational spectra. We discuss the search for random ensembles of fermion interactions that yield rotational and vibrational spectra, and in particular present results from a new ensemble, the ``random quadrupole-quadrupole ensemble''

Keywords

Cite

@article{arxiv.nucl-th/0601093,
  title  = {Collective behavior in random interaction},
  author = {Calvin W. Johnson and Hai Ah Nam},
  journal= {arXiv preprint arXiv:nucl-th/0601093},
  year   = {2007}
}

Comments

6 pages, 5 figures; Contribution to XXIX Symposium on Nuclear Physics, Cocoyoc, Mexico, 2006; minor revision to text and references