Testing Fundamental Physics in Antihydrogen Experiments
Testing Fundamental Physics in Antihydrogen Experiments
复制标题
在反氢实验中测试基础物理
DOI：
--
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
G. Shore
中科院分区：
文献类型：
--
作者：
M. Charlton;S. Eriksson;G. Shore
最近高精度反氢光谱学的出现为粒子物理学和广义相对论（GR）的基本原理（如洛伦兹和CPT不变性以及爱因斯坦等效原理（EEP））在纯反物质系统上的严格实验测试开辟了道路。在本文中，这些测试的性质和影响进行了调查，特别是在欧洲核子研究中心的阿尔法反氢计划。这是由相对论量子场论（QFT）和GR的时间测量理论中的反粒子，因果关系和基本对称性的作用的理论审查的基础。低能有效的理论，打破洛伦兹和CPT对称性，或强等效原理（SEP），然后介绍，同时审查了几种涉及新的远程力量的“第五种力量”设想情况，这些力量实际上违反了自由落体的普遍性或弱等效原则。CPT破坏在确定宇宙的物质-反物质不对称性的可能作用进行了讨论。明确的计算给出的依赖于可能的洛伦兹和CPT违反耦合的过渡频率之间的1 S，2S和2 P超精细态在磁场中测量的ALPHA陷阱和所得的界限与现有的限制进行了比较。的EEP电流的自由落体和光谱测量与反氢的影响进行了分析，现有的和潜在的界限WEPFF和时钟的普遍性（WEPc）的推导，连同第五力的约束。未来的高精度反氢光谱，自由落体和引力红移实验，反原子物质波干涉测量的前景进行了描述和实验的可能性，涉及其他反物质物种的简要概述。
The recent advent of high precision antihydrogen spectroscopy opens the way to stringent experimental tests of the fundamental principles underlying particle physics and general relativity (GR), such as Lorentz and CPT invariance and the Einstein Equivalence Principle (EEP), on pure antimatter systems. In this paper, the nature and implications of these tests is investigated, with special reference to the ALPHA antihydrogen programme at CERN. This is underpinned by a theoretical review of the role of antiparticles, causality and fundamental symmetries in relativistic quantum field theory (QFT) and the theory of time measurement in GR. Low-energy effective theories which break Lorentz and CPT symmetry, or the Strong Equivalence Principle (SEP), are then introduced, together with a review of several `fifth force' scenarios involving new long-range forces which would effectively violate the universality of free-fall, or Weak Equivalence Principle (WEPff). The possible role of CPT violation in determining the matter-antimatter asymmetry of the Universe is discussed. Explicit calculations are given for the dependence on possible Lorentz and CPT violating couplings of the transition frequencies amongst the 1S, 2S and 2P hyperfine states measured in the magnetic field of the ALPHA trap and the resulting bounds are compared with existing limits. An analysis of the implications for the EEP of current free-fall and spectroscopic measurements with antihydrogen is presented and existing and potential bounds on WEPff and the universality of clocks (WEPc) are derived, together with constraints on fifth forces. Future prospects for high-precision antihydrogen spectroscopy, free-fall and gravitational redshift experiments, and anti-atom matter-wave interferometry are described and experimental possibilities involving other antimatter species are briefly outlined.
影响因子：
2.1
作者：
Duncan A. Brown;K. Vahi;M. Taufer;Von Welch;E. Deelman;Lorena A. Barba;George K. Thiruvathukal
通讯作者：
Duncan A. Brown;K. Vahi;M. Taufer;Von Welch;E. Deelman;Lorena A. Barba;George K. Thiruvathukal
弯曲时空环效应的轻子起源
影响因子：
5.4
作者：
McDonald J
通讯作者：
McDonald J