Observation of chaos-assisted tunneling between islands of stability

被引：298

作者：

Steck, DA ^{[1
]}

Oskay, WH ^{[1
]}

Raizen, MG ^{[1
]}

机构：

[1] Univ Texas, Dept Phys, Austin, TX 78712 USA

来源：

SCIENCE | 2001年 / 293卷 / 5528期

关键词：

D O I：

10.1126/science.1061569

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We report the direct observation of quantum dynamical tunneling of atoms between separated momentum regions in phase space. We study how the tunneling oscillations are affected as a quantum symmetry is broken and as the initial atomic state is changed. We also provide evidence that the tunneling rate is greatly enhanced by the presence of chaos in the classical dynamics. This tunneling phenomenon represents a dramatic manifestation of underlying classical chaos in a quantum system.

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页码：274 / 278

页数：5

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