The field of cold antimatter physics has rapidly developed in the last 20 years, overlapping with the period of the Antiproton Decelerator (AD) at CERN. The central subjects are CPT symmetry tests and Weak Equivalence Principle (WEP) tests. Various groundbreaking techniques have been developed and are still in progress such as to cool antiprotons and positrons down to extremely low temperature, to manipulate antihydrogen atoms, to construct extremely high-precision Penning traps, etc. The precisions of the antiproton and proton magnetic moments have improved by six orders of magnitude, and also laser spectroscopy of antihydrogen has been realized and reached a relative precision of 2 × 10⁻¹² during the AD time. Antiprotonic helium laser spectroscopy, which started during the Low Energy Antiproton Ring (LEAR) time, has reached a relative precision of 8 × 10⁻¹⁰. Three collaborations joined the WEP tests inventing various unique approaches. An additional new post-decelerator, Extra Low ENergy Antiproton ring (ELENA), has been constructed and will be ready in 2021, which will provide 10–100 times more cold antiprotons to each experiment. A new era of the cold antimatter physics will emerge soon including the transport of antiprotons to other facilities.

冷反物质物理领域在过去 20 年中迅速发展，与欧洲核子研究中心的反质子减速器（AD）时期重叠。中心主题是 CPT 对称性测试和弱等价原理 (WEP) 测试。各种突破性技术已经被开发出来并且仍在进行中，例如将反质子和正电子冷却到极低的温度，操纵反氢原子，构建极高精度的潘宁陷阱等。反质子和质子磁矩的精度已经提高提高了六个数量级，并且在AD时间内实现了反氢激光光谱并达到了2×10 ^-12的相对精度。反质子氦激光光谱始于低能反质子环（LEAR）时期，目前已达到 8 × 10 ^-10的相对精度。三个合作伙伴参与了 WEP 测试，发明了各种独特的方法。另外一个新的后减速器——超低能量反质子环（ELENA）已经建成，将于 2021 年准备就绪，将为每个实验提供 10-100 倍的冷反质子。冷反物质物理学的新时代即将出现，包括将反质子运输到其他设施。