Experimental study of quantum dynamics in a regime of classical anomalous diffusion

被引：70

作者：

Klappauf, BG ^{[1
]}

Oskay, WH ^{[1
]}

Steck, DA ^{[1
]}

Raizen, MG ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.81.4044

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We measure the momentum of cold cesium atoms in a periodically pulsed standing wave of light. This system is an experimental realization of the quantum kicked rotor. The momentum diffusion in the (chaotic) classical analog of this system is typically suppressed by quantum localization. We find, however, that for certain pulse amplitudes where the classical system exhibits anomalous diffusion, our momentum distributions are not exponentially localized. We observe a predicted correspondence between the classical and quantum energy growth as a function of pulse amplitude and period. [S0031-9007(98)07597-8].

引用

页码：4044 / 4047

页数：4

共 16 条

[11] CALCULATION OF TURBULENT-DIFFUSION FOR THE CHIRIKOV-TAYLOR MODEL [J].