DYSON BROWNIAN-MOTION AND UNIVERSAL DYNAMICS OF QUANTUM-SYSTEMS

Citation
O. Narayan et Bs. Shastry, DYSON BROWNIAN-MOTION AND UNIVERSAL DYNAMICS OF QUANTUM-SYSTEMS, Physical review letters, 71(13), 1993, pp. 2106-2109
Citations number
21
Categorie Soggetti
Physics
Journal title
ISSN journal
00319007
Volume
71
Issue
13
Year of publication
1993
Pages
2106 - 2109
Database
ISI
SICI code
0031-9007(1993)71:13<2106:DBAUDO>2.0.ZU;2-Y
Abstract
We establish a correspondence between the evolution of the distributio n of eigenvalues of a N x N matrix subject to a random Gaussian pertur bing matrix, and a Fokker-Planck equation postulated by Dyson. Within this model, we prove the equivalence conjectured by Altshuler and co-w orkers between the space-time correlations of the Sutherland-Calogero- Moser system in the thermodynamic limit and a set of two-variable corr elations for disordered quantum systems calculated by them. Multiple v ariable correlation functions are, however, shown to be inequivalent f or the two cases.