Levelstatistics and stochasticity in a driven quantum system

authored by

H. Frahm, H. J. Mikeska

Abstract

We investigate quantum properties of one anisotropic spin driven by an external time-dependent magnetic field which shows a transition from regular to irregular dynamics with increasing field strength in the classical limit. In particular we study the statistical properties of the quasi-spectrum. Our results support the conjecture that Poisson- and GOE-statistics are to be associated with integrable and nonintegrable systems resp. in the semiclassical limit. Approaching the quantum case we observe significant deviations from GOE statistics.

Organisation(s)

Institute of Theoretical Physics

Type

Article

Journal

Zeitschrift für Physik B Condensed Matter

Volume

65

Pages

249-253

No. of pages

5

ISSN

0722-3277

Publication date

01.06.1986

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Condensed Matter Physics

Electronic version(s)

https://doi.org/10.1007/BF01303848 (Access: Unknown)