Science
Researchers develop cold muonium beam to test Einstein gravity theory
ScienceDaily reports that researchers developed a method to produce a controlled muonium beam to test gravitational effects on exotic matter.
The short version
- Researchers at ETH Zurich and the Paul Scherrer Institute developed a technique using superfluid helium near absolute zero to generate a cold, controlled beam of muonium atoms.[ScienceDaily]
- The advancement is designed to enable tests on whether gravity affects second-generation particles in accordance with Einstein's equivalence principle.[ScienceDaily]
- The research team plans to test the method with an interferometer this year, aiming to run the full gravity experiment in two or three years.[ScienceDaily]
Key facts
- Researchers at ETH Zurich and the Paul Scherrer Institute created a controlled beam of cold muonium atoms using superfluid helium near absolute zero.[ScienceDaily]
- The experiment seeks to test Einstein's equivalence principle on second-generation particles.[ScienceDaily]
- Muons decay in roughly 2.2 microseconds, creating challenge parameters for gravity measurement.[ScienceDaily]
- The study was published in Nature Physics and supported by the National Centre of Competence in Research Muoniverse.[ScienceDaily]
What remains uncertain
- It remains to be seen whether the atomic beam testing scheduled for this year will succeed, allowing the gravity experiment to proceed in two to three years.[ScienceDaily]
Sources
Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.
- Scientists are about to test Einstein’s gravity with exotic matterScienceDaily - Science