BBC News - Neutrons could test Newton's gravity and string theory
By Jason Palmer Science and technology reporter, BBC News
Neutrons produced at the ILL can be used to probe fundamental aspects of physicsA pioneering technique using subatomic particles known as neutrons could give microscopic hints of extra dimensions or even dark matter, researchers say.
The idea rests on probing any minuscule variations in gravity as it acts on slow-moving neutrons in a tiny cavity.
A Nature Physics report outlines how neutrons were made to hop from one gravitational quantum state to another.
These quantum jumps can test Newton's theory of gravity - and any variations from it - with unprecedented precision. [...]
Full article at bbc.co.uk
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