A theory for quantum accelerator modes in atom optics

被引：65

作者：

Fishman, S ^{[1
]}

Guarneri, I

Rebuzzini, L

机构：

[1] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel

[2] Univ Insubria Como, Ctr Ric Sistemi Dinamici, I-22100 Como, Italy

[3] Ist Nazl Fis Mat, I-20133 Milan, Italy

来源：

JOURNAL OF STATISTICAL PHYSICS | 2003年 / 110卷 / 3-6期

关键词：

Kicked Rotors; cold atoms optics; phase space strucures;

D O I：

10.1023/A:1022176306198

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Unexpected accelerator modes were recently observed experimentally for cold cesium atoms when driven in the presence of gravity. A detailed theoretical explanation of this quantum effect is presented here. The theory makes use of invariance properties of the system, that are similar to the ones of solids, leading to a separation into independent kicked rotor problems. The analytical solution makes use of an asymptotic approximation very similar to the semiclassical one, except that the small parameter is not Planck s constant, but rather the detuning from the frequency that is resonant in absence of gravity.

引用

页码：911 / 943

页数：33

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