Nature of order from random two-body interactions
Condensed Matter
2009-11-07 v1 Chaotic Dynamics
Nuclear Theory
Abstract
We investigate the origin of order in the low-lying spectra of many-body systems with random two-body interactions. Our study based both on analytical as well as on numerical arguments shows that except for the most -stretched states, the ground states in the higher -sectors are more orderly and develop larger energy gaps than the ones in the J=0-sector. Due to different characteristic energy scales in different -sectors the J=0 ground states may predominate only when all the states are taken together.
Keywords
Cite
@article{arxiv.cond-mat/0110551,
title = {Nature of order from random two-body interactions},
author = {S. Drozdz and M. Wojcik},
journal= {arXiv preprint arXiv:cond-mat/0110551},
year = {2009}
}
Comments
LaTeX2e-RevTeX, 11 pages, 5 Postscript figures