Quantum chaos induced by nonadiabatic coupling in wave-packet dynamics

被引：11

作者：

Higuchi, H ^{[1
]}

Takatsuka, K ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Arts & Sci, Dept Basic Sci, Tokyo 1538902, Japan

来源：

PHYSICAL REVIEW E | 2002年 / 66卷 / 03期

关键词：

D O I：

10.1103/PhysRevE.66.035203

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：

The effect of nonadiabatic coupling due to breakdown of the Born-Oppenheimer approximation on chaos is investigated. A couple of measures (indicators) that detect the extent of chaos in wave-packet dynamics on coupled potential functions are devised. Using them, we show that chaos is indeed induced by a nonadiabatic coupling in individual time-dependent wave-packet dynamics. This chaos is genuinely of quantum nature, since it arises from bifurcation and merging of a wave packet at the quasicrossing region of two coupled potential functions.

引用

页码：1 / 035203

页数：4

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