Quantum coherent tractor beam effect for atoms trapped near a nanowaveguide.
Quantum coherent tractor beam effect for atoms trapped near a nanowaveguide.
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DOI：
10.1038/srep28905
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发表时间：
2016-07-21
影响因子：
4.6
通讯作者：
Nic Chormaic S
中科院分区：
文献类型：
--
作者：
Sadgrove M;Wimberger S;Nic Chormaic S
我们提出了几种方案来实现在低模纳米波导附近的超冷原子的牵引波束效应。被困在波导附近的原子以与导模传播方向相反的方向传输。我们分析了在特定纳米波导（即光学纳米纤维）附近捕获的超冷23Na原子的三个具体例子：(i)传送带型牵引束效应，（ii）加速器牵引束效应和（iii）量子相干牵引束效应，所有这些都可以有效地将原子沿着纳米纤维拉向光源。该技术为控制纳米波导附近粒子的运动提供了一种新的工具，在粒子输运和结合以及原子干涉测量的研究中具有潜在的应用前景。
We propose several schemes to realize a tractor beam effect for ultracold atoms in the vicinity of a few-mode nanowaveguide. Atoms trapped near the waveguide are transported in a direction opposite to the guided mode propagation direction. We analyse three specific examples for ultracold 23Na atoms trapped near a specific nanowaveguide (i.e. an optical nanofibre): (i) a conveyor belt-type tractor beam effect, (ii) an accelerator tractor beam effect, and (iii) a quantum coherent tractor beam effect, all of which can effectively pull atoms along the nanofibre toward the light source. This technique provides a new tool for controlling the motion of particles near nanowaveguides with potential applications in the study of particle transport and binding as well as atom interferometry.