Superfluid Atomic Bosons, Fermions and Their Mixtures

超流体原子玻色子、费米子及其混合物

• 批准号: 1205973
• 负责人: Han Pu
• 金额: $ 18万
• 依托单位: William Marsh Rice University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-07-01 至 2015-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1205973&HistoricalAwards=false
• 关键词: Superfluid; Atomic; Bosons; Fermions; Their

The field of ultracold atomic physics has been progressing rapidly without signs of slowing down. Under this award, we will carry out a theoretical study of several important problems concerning the superfluid properties of cold atoms. These projects are of fundamental importance, and in the meantime are inspired by recent experimental progress in the field. We will consider the properties of cold atomic ensembles whose effective spatial dimensions in which they live are tuned. A tunable spatial dimension is not readily achievable in other materials. But for cold atoms, by adjusting the geometry of the trapping potential that is used to confine them, such a feat can be realized in the lab. We will also consider the novel properties of cold atoms under the manipulation of appropriately arranged laser fields. Under proper conditions, the laser beams can induce synthetic electromagnetic fields such that the neutral atoms behave like charged particles moving in electric and/or magnetic fields. These research projects are of great relevance to current experiments, some of which are being carried out by PI's colleagues at Rice University. These problems span a quite wide spectrum within the field of cold atoms with close ties to condensed matter physics and nonlinear physics. Students involved in these projects will receive a solid training in theoretical physics, including both analytical methods and numerical techniques. Such a training will be very valuable for their future career in science and engineering.

超冷原子物理学领域一直在迅速发展，没有放缓的迹象。在该奖项下，我们将开展有关冷原子超流性质的几个重要问题的理论研究。这些项目具有根本的重要性，同时受到该领域最近实验进展的启发。我们将考虑冷原子系综的性质，它们所处的有效空间维度是调谐的。可调的空间尺寸在其他材料中不容易实现。但是对于冷原子，通过调整用于限制它们的捕获势的几何形状，这样的壮举可以在实验室中实现。我们还将考虑在适当排列的激光场的操纵下冷原子的新特性。在适当的条件下，激光束可以诱导合成电磁场，使得中性原子表现得像带电粒子在电场和/或磁场中运动。这些研究项目与当前的实验非常相关，其中一些实验是由PI在莱斯大学的同事进行的。这些问题在冷原子领域内涉及面很广，与凝聚态物理和非线性物理有着密切的联系。参与这些项目的学生将接受理论物理方面的扎实培训，包括分析方法和数值技术。这样的培训对他们未来的科学和工程事业将是非常有价值的。