Manifestations of vortices during ultracold-atom propagation through waveguides

被引：4

作者：

Bromley, MWJ ^{[1
]}

Esry, BD ^{[1
]}

机构：

[1] Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA

来源：

PHYSICAL REVIEW A | 2004年 / 70卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.70.013605

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The possibility of generating vortices during matter-wave propagation through microstructures is examined. Vortices can arise solely due to wave interference in low-density ultracold atom clouds, and do not require any atom-atom (nonlinear) interactions. The properties of these "interference vortices" are understood from a simple two-mode model in a straight waveguide. This model is then applied to vortex creation in a circular bend since a circular waveguide bend is one of the simplest atom optical elements that can induce mode excitations. Time-independent and time-dependent analyses are used to investigate vortex creation and dynamics in these systems.

引用

页码：013605 / 1

页数：9

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