Atomic Zitterbewegung

被引：58

作者：

Merkl, M. ^{[1
]}

Zimmer, F. E. ^{[1
]}

Juzeliunas, G. ^{[2
]}

Oehberg, P. ^{[1
]}

机构：

[1] Heriot Watt Univ, Sch Engn & Phys Sci, SUPA, Edinburgh EH14 4AS, Midlothian, Scotland

[2] Vilnius Univ, Inst Theoret Phys & Astron, LT-01108 Vilnius, Lithuania

来源：

EPL | 2008年 / 83卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1209/0295-5075/83/54002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ultracold atoms which are subject to ultra-relativistic dynamics are investigated. By using optically induced gauge potentials we show that the dynamics of the atoms is governed by a Dirac-type equation. To illustrate this we study the trembling motion of the centre of mass for an effective two-level system, historically called Zitterbewegung. Its origin is described in detail, where in particular the role of the finite width of the atomic wave packets is seen to induce a damping of both the centre of mass dynamics and the dynamics of the populations of the two levels. Copyright (c) EPLA, 2008.

引用

页数：6

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