ORDERLY SPECTRA FROM RANDOM INTERACTIONS

Authors
JOHNSON CW BERTSCH GF DEAN DJ
Citation
Cw. Johnson et al., ORDERLY SPECTRA FROM RANDOM INTERACTIONS, Physical review letters, 80(13), 1998, pp. 2749-2753
Citations number
10
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
80
Issue
13
Year of publication
1998
Pages
2749 - 2753
Database
ISI
SICI code
0031-9007(1998)80:13<2749:OSFRI>2.0.ZU;2-F
Abstract
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 s tates separated by a gap from the excited states, and evidence of phon on vibrations in the low-lying spectra.