Following these milestones, the ALPHA collaboration recently constructed an entirely new apparatus, ALPHA-2. It allows laser access to the trapped anti-atoms, enabling laser cooling and precision spectroscopy. The first physics results with the new apparatus has been recently reported: a precision measurement of charge neutrality of antihydrogen , which in turn provides an improved measurement of the electric charge of the positron, as a test of CPT. In the meantime, the collaboration is developing an ambitious new project, ALPHA-g, to study the gravitational properties of antimatter to address, for the first time, the question of whether antimatter falls in the same way as matter does.
In this talk, I will start with some discussions of the motivations , followed by recent achievements and the future prospects of the fundamental physics studies with ALPHA.
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