摘要 : Measuring the gravitational behaviour of antimatter is a crucial test of the Weak Equivalence Principle. However, the gravitational force is so weak that the experiment requires a cooling of antimatter never achieved so far. The G... 展开 Measuring the gravitational behaviour of antimatter is a crucial test of the Weak Equivalence Principle. However, the gravitational force is so weak that the experiment requires a cooling of antimatter never achieved so far. The GBAR experiment aims to overcome this challenge using the anti-ion H~+; a high-intensity positron source has been developed for this purpose. 收起