Riding a quantum wave: transport and flow of atomic quantum fluids

驾驭量子波：原子量子流体的传输和流动

• 批准号: DP160102085
• 负责人: Prof Halina Rubinsztein-Dunlop
• 金额: $ 18.55万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2016
• 资助国家: 澳大利亚
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP160102085
• 关键词: Riding; quantum; wave; transport; flow

This project intends to characterise and engineer the fundamental transport properties of atomic superfluids. Lasers and magnetic fields can be used to cool tiny samples of millions of atoms to temperatures a few billionths of a degree above absolute zero. At such cold temperatures they form a superfluid known as a Bose–Einstein condensate, which flows with zero viscosity. Using tailored light fields to trap and guide the atoms, this project plans to build rudimentary atomic circuits and coax the superfluid to flow through a channel between two reservoirs, firstly with thermodynamic gradients, and secondly by building a quantum pump. Together with computer modelling, this would allow us to characterise the microscopic transport properties of superfluids and provide us with an understanding of how to use them in atomtronic devices in the future.

这个项目旨在研究和设计原子超流体的基本传输特性。激光和磁场可以用来将数百万原子的微小样品冷却到绝对零度以上数十亿分之一度的温度。在如此寒冷的温度下，它们形成了一种被称为玻色-爱因斯坦凝聚体的超流体，其流动粘度为零。利用定制的光场来捕获和引导原子，该项目计划建立基本的原子电路，并诱使超流体流过两个水库之间的通道，首先是热力学梯度，其次是建立量子泵。再加上计算机建模，这将使我们能够模拟超流体的微观输运特性，并为我们提供未来如何在原子电子设备中使用它们的理解。