Gauge Fields In Cold Atoms

冷原子中的规范场

• 批准号: 1068165
• 负责人: Erich Mueller
• 金额: $ 27万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1068165&HistoricalAwards=false
• 关键词: Gauge; Fields; Cold; Atoms

Experiments on ultracold atoms are enabling us to learn about the quantum mechanics of collections of particles, giving insight into phenomena which is both intellectually stimulating and possibly applicable. This award supports a theoretical study divided into three parts: (1) The researchers will engineer a system which will allow cold atom experimentalists to "mock-up" one of the most important models of high energy physics: Quantum Electrodynamics. (2) The researchers will produce new insight into a classic model of condensed matter physics: the Hoffstaedter model. (3) The researchers will study how newly accessible geometries modify one of the most exotic phenomena from semiconductor physics: the fractional quantum Hall effect. These three studies all involve "gauge fields", and are woven together by a number of intellectual threads. The intellectual merit of the first topic is that opens up a new research direction, and paves the way towards using cold atoms to study models which are relevant to high energy physics. This is a novel, and potentially transformational, direction for cold atom physics. The second topic is fundamental, and has intrigued physicists for half a century. Not only does it have intrinsic intellectual merit, but the new capabilities of cold atom systems means that this physics is now experimentally relevant. The primary intellectual merit of the third topic lies in its importance for current experiments, which naturally involve quasi- one dimensional geometries. The third topic also naturally builds on important NSF sponsored theoretical work recently completed by researchers from the condensed matter community.This award features several broader impacts. First, much of the work will be performed by graduate students, who will learn both physics, and the tools of scientific research. Second, the principal investigator is involved in an important project aimed at addressing the national shortage of high school physics teachers. He is active in Cornell's efforts to give undergraduate physics students teaching experiences, and helping encourage them to become teachers. Third, the principal investigator is involved in more general efforts to increase the numbers of undergraduate physicists trained at Cornell, with a particular interest in diversity issues.

关于超低原子的实验使我们能够了解颗粒集合的量子力学，从而深入了解既有智力刺激又可能适用的现象。 该奖项支持一项分为三个部分的理论研究：（1）研究人员将设计一个系统，该系统将使冷原子实验者能够“模拟”高能量物理学的最重要模型之一：量子电动力学。 （2）研究人员将对凝结物理学的经典模型提供新的见解：霍夫斯塔特模型。 （3）研究人员将研究新近获得的几何形状如何修改半导体物理学中最奇特的现象之一：分数量子霍尔效应。 这三项研究都涉及“量规场”，并通过许多智力线程编织在一起。 第一个主题的智力优点是打开了一个新的研究方向，并为使用冷原子来研究与高能量物理学相关的模型铺平了道路。这是冷原子物理学的新颖且有潜在的转化方向。第二个主题是基本的，并吸引了物理学家半个世纪。 它不仅具有内在的智力优点，而且冷原子系统的新功能就意味着该物理学现在与实验相关。第三个主题的主要智力优点在于它对当前实验的重要性，这自然涉及一维几何形状。第三个主题自然也建立在重要的NSF赞助的重要理论工作的基础上，该研究人员最近完成了CondeSed Matter Community的研究人员。该奖项具有更广泛的影响。 首先，大部分工作将由研究生进行，他们将学习物理学和科学研究的工具。 其次，首席研究人员参与了一个重要的项目，旨在解决国家缺乏高中物理教师的短缺。 他积极参与康奈尔（Cornell）努力使本科生的学生教授经验，并帮助他们成为老师。 第三，首席研究人员参与了更一般的努力，以增加在康奈尔大学培训的本科物理学家的数量，对多样性问题特别感兴趣。