Orderly spectra from random interactions

Details Orderly spectra from random interactions Orderly spectra from random interactions

1998-02-23

arxiv.org/abs/nucl-th/9802066v1

Phys.Rev.Lett. 80 (1998) 2749-2753

Physics

Nuclear Physics

Nuclear Theory

RevTex, 4 pages, 4 figures; accepted for publication in Phys Rev Lett

Scientific paper

10.1103/PhysRevLett.80.2749

We investigate the low-lying spectra of many-body systems with random two-body interactions, specifying that the ensemble be invariant under particle-hole conjugation.Surprisingly we find patterns reminiscent of more orderly interactions, such as a predominance of J=0 ground states separated by a gap from the excited states, and evidence of phonon vibrations in the low-lying spectra.

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