Investigations of All-Optical Bose Condensates

全光学玻色凝聚体的研究

• 批准号: 0303013
• 负责人: Michael Chapman
• 金额: $ 40.21万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-05-01 至 2007-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0303013&HistoricalAwards=false
• 关键词: Investigations; Optical; Bose; Condensates

The scientific objective of this project is to investigate all-optical approaches to atomic Bose-Einstein condensation (BEC). The recent demonstration of all-optical BEC by this group provided the first new path to achieving quantum degeneracy in atomic gases since the pioneering demonstrations in 1995. The method is surprising simple and an order of magnitude faster than standard BEC experiments. In the new investigations being undertaken in the present project, efforts will concentrate on examining the mechanisms behind the remarkable loading properties of these traps. Additionally, the considerable flexibility provided by tailoring the optical trapping potential will be exploited to explore alternative trapping geometries, allowing for formation of multiple condensates in large-period lattices. This capability, combined with spin-independent nature of these traps, will make it possible to explore many fundamental issues of multi-component (spinor) condensates. In a broader scope, the achievement of Bose-Einstein condensation in dilute atomic gases has created a new frontier of research in AMO physics with significant overlap with traditional areas of condensed matter physics. Given the potential of the field, it is important to explore different methods for reaching BEC, particularly methods that offer new capabilities, simplicity, or speed. Research efforts will be accompanied by the training of students to work in this emerging new field.

该项目的科学目标是研究原子玻色-爱因斯坦凝聚（BEC）的全光学方法。 该小组最近对全光学BEC的演示提供了自1995年开创性演示以来实现原子气体量子简并的第一条新途径。 该方法非常简单，比标准BEC实验快一个数量级。 在本项目正在进行的新的调查中，将集中精力研究这些陷阱的显着负载特性背后的机制。此外，相当大的灵活性提供了定制的光学捕获潜力将被用来探索替代的捕获几何形状，允许在大周期晶格中形成多个冷凝物。这种能力，结合自旋独立的性质，这些陷阱，将有可能探索许多基本问题的多组分（旋量）凝聚。 在更广泛的范围内，稀原子气体中的玻色-爱因斯坦凝聚的成就开创了AMO物理研究的新前沿，与凝聚态物理的传统领域有重大重叠。鉴于该领域的潜力，探索实现BEC的不同方法非常重要，特别是提供新功能，简单性或速度的方法。 研究工作将伴随着对学生在这一新兴领域工作的培训。