Classical stochasticity and quantum uncertainty in a simple quantum spin model
- authored by
- H. Frahm, H. J. Mikeska
- Abstract
We investigate the dynamics of one anisotropic spin in an external time-dependent magnetic field. Results on this model, which is classically chaotic, are presented for a quantum spin, in particular for S≫1. Quantum unpredictability dominates in regular regions of phase space; in irregular regions of phase space we find classical stochasticity governed by a S-dependent Lyapunov exponent as long as t<T0, where T0 ∼ log S.
- Organisation(s)
-
Institute of Theoretical Physics
- Type
- Article
- Journal
- Journal of Magnetism and Magnetic Materials
- Volume
- 54-57
- Pages
- 1203-1204
- No. of pages
- 2
- ISSN
- 0304-8853
- Publication date
- 02.1986
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Condensed Matter Physics
- Electronic version(s)
-
https://doi.org/10.1016/0304-8853(86)90784-5 (Access:
Unknown)
