Testing antimatter gravity with muonium

TL;DR

This paper discusses the potential of using muonium atoms to experimentally measure the gravitational behavior of antimatter, specifically leptonic second-generation antimatter, and reviews progress towards such experiments.

Contribution

It introduces the concept of using muonium to test antimatter gravity and details recent advancements in preparing for these experiments.

Findings

Muonium can serve as a probe for antimatter gravity.

Progress has been made in experimental techniques for muonium-based tests.

Potential to measure gravitational acceleration of leptonic antimatter.

Abstract

The debate about how antimatter or different antimatter systems behave gravitationally will be ultimately decided by experiments measuring directly the acceleration of various antimatter probes in the gravitational field of the Earth or perhaps redshift effects in antimatter atoms caused by the annual variation of the Sun's gravitational potential at the location of the Earth. Muonium atoms may be used to probe the gravitational interaction of leptonic, second generation antimatter. We discuss the progress of our work towards enabling such experiments with muonium.