RUI: Neutron Interferometry

RUI：中子干涉测量

• 批准号: 8713559
• 负责人: Herbert Bernstein
• 金额: $ 21.24万
• 依托单位: Hampshire College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-01 至 1991-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8713559&HistoricalAwards=false
• 关键词: RUI; Neutron; Interferometry

Drs. Bernstein and Horne propose to investigate neutron interferometry and diffraction. These investigations include development of new sensitive probes of matter and study of fundamental quantum phenomena. This project continues the ten year collaboration with Professor Shull at MIT, a collaboration that has played a central role in the development of neutron interferometry. As a probe, neutrons in crystals are more sensitive to perturbing influences than in free space. Both the effective mass enhancement and that of a new resonance phenomenon will be exploited. This new resonance occurs when in-crystal neutrons are subject to a homogeneous magnetic field of the proper magnitude. They will study possible improvements in the effective mass enhancements, possible combinations of the two effects, their application to search for other neutron properties, e.g., the electric dipole moment, and the possibility of using ferroelectric crystal diffraction for even greater sensitivity. On the theoretical side, they also expect to investigate refinements in the application of the gravitational equivalence principle, the description of the Fizeau effect (phase shift in a moving medium) and an exact analogy to the one- dimensional Dirac equation. Experimental tests will be performed at a facility being installed at Grenoble and, if possible, at the planned NBS cold neutron source. This work on interferometry leads to fundamental quantum principles and effects. Here they intend to pursue a newly discovered system that violates Bell's inequality but, like the original EPR experiment, does not involve spin. They will also continue their coherence studies including the nature of neutron wave-packets and investigations of exact spin rotation symmetry.

伯恩斯坦和霍恩博士提议研究中子 干涉测量和衍射。 这些调查包括 开发新的灵敏物质探针和研究 基本量子现象 该项目延续了10 与麻省理工学院的Shull教授合作了一年， 在中子的发展中扮演了核心角色 干涉测量法 作为一种探针，晶体中的中子对微扰更敏感 比在自由空间的影响。 有效质量 增强和一个新的共振现象将是 被剥削 当晶体中的中子 受到均匀磁场的影响 大小 他们将研究如何改善 有效的质量增强，两者的可能组合 影响，他们的应用，以寻找其他中子 特性，例如，电偶极矩，以及 利用铁电晶体衍射， 灵敏度 在理论方面，他们还希望 研究引力理论应用的改进 等效原理，斐索效应的描述 （移动介质中的相移）和一个精确的类比- 维Dirac方程 将进行实验测试 在格勒诺布尔正在安装的设施，如果可能的话，在 计划中的NBS冷中子源。 这项干涉测量的工作导致了基本的量子 原则和效果。 在这里，他们打算追求一个新的 发现了违反贝尔不等式的系统，但是，就像 原始EPR实验，不涉及自旋。 他们还将 继续他们的相干性研究，包括中子的性质 波包和精确自旋旋转对称性的研究。