| 1. | Uccc , united christian community church 基督教汇基堂 |
| 2. | We propose two novel schemes to guide cold neutral atoms by using a static magnetic field from a v - and u - shaped current - carrying conductors ( vccc and uccc ) 本文提出了采用v -型载流导体和u -型载流导体实现中性原子磁导引的新方案。 |
| 3. | Moreover , we propose some atom - optical elements based on the vccc , such as atomic funnel , atomic beam splitter and atomic interferometer . in the scheme of the uccc 最后,利用v -型载流导体构建了多种原子光学器件,例如原子漏斗,原子分束器和原子干涉仪等。 |
| 4. | We calculate the relationships between the distribution of the magnetic field and the parameters of the uccc . we find that the uccc can be used to realize both single - and double - channel magnetic guiding of cold atoms 通过对横向磁场的计算和分析,发现u -型载流导体方案既可以实现单通道原子磁导引,也可以实现双通道原子磁导引。 |
| 5. | In the case of single - channel magnetic guiding , we calculate the relationship between the guiding efficiency and electric current or the transverse temperature of atomic beam . we also propose several atom - optical elements base on the uccc 本文也计算了单通道磁导引情况下,原子导引效率和电流、原子束横向温度之间的关系,并采用u -型载流导体构建了多种原子光学器件。 |
| 6. | In the scheme of the atomic interferometer based on the uccc , we discuss the approximate solution of atomic matter wave - function in double - channel magnetic guide , and analyze the evolution of transverse wave function in the process of atomic interference and show the probability distribution after the interference 利用在u -型载流导体基础上构建的原子干涉仪,讨论了双通道磁导引中物质波波函数的近似求解。此外,还分析了干涉过程中横向波函数的演化,并给出了物质波通过干涉仪后的干涉条纹。 |
| 7. | We propose a novel controllable atomic beam - spiller based on the uccc and discuss the splitting mechanism of the guided atomic beam in the beam splitter from two aspects of the magnetic - field distribution and the trace of the guiding centers . the splitting ratio of the beam splitter can be adjusted by adding a homogeneous bias magnetic field along the y - direction , and the relationship between the splitting ratio and the additional bias field is analyzed 本文提出了一种采用在y方向上加一偏置磁场来实现分束比可控的新颖原子分束器,并从磁场分布和导引中心轨迹两个方面,详细分析和讨论了基于u -型载流导体所构建的原子分束器的分束机制。 |
| 8. | Finally , we present the approximate distribution of trapping potential of the guided cold atoms in the atomic funnel based on the vccc or the uccc . by using a similar method in the analysis of optical coherence , we study the coherent evolution of the ground - state wave function of ultra - cold atoms in atomic funnel , and obtain some normalized correlation functions of the first , second , third and high order 最后,给出了原子在基于v -型和u -型载流导体构建的原子漏斗中所感受到的囚禁势的摘要采用漂流导体的原子易引及其原于光学器件近似分分,并采用类似于光场相干性的分析方法,计算了超冷原子物质波的基进波函数及其在原子漏斗中传播时相干性的演化,得到了物质波的一阶、二阶、三阶和高阶相于度。 |