COMPLEXITY IN QUANTUM-SYSTEMS

被引：12

作者：

CRISANTI, A

FALCIONI, M

PALADIN, G

SERVA, M

VULPIANI, A

机构：

[1] UNIV AQUILA,DIPARTIMENTO FIS,I-67010 COPPITO,ITALY

[2] UNIV AQUILA,DIPARTIMENTO MATEMAT,I-67010 COPPITO,ITALY

来源：

PHYSICAL REVIEW E | 1994年 / 50卷 / 01期

关键词：

D O I：

10.1103/PhysRevE.50.138

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We discuss the behavior of a quantum 1/2 spin coupled to a time dependent magnetic field, which can be quasiperiodic or random. For a quasiperiodic field, the time evolution of the system on a coarse grained space has autocorrelation, which does not decay, and positive topological entropy. The information complexity diverges as a stretched exponential, although the Shannon entropy is sero, and there is no divergence of nearby orbits. A simple random process is introduced in order to reproduce the main qualitative features of the observed weakly complex behavior.

引用

页码：138 / 144

页数：7

共 15 条

[1] RECOVERY OF LIOUVILLE DYNAMICS IN QUANTUM MECHANICALLY SUPPRESSED CHAOTIC BEHAVIOR [J].