Atom Interferometer Measurements of Chameleon Force (IMAGE)

University of California - Berkeley

Atom Interferometer Measurements of Chameleon Force

Caption

UC Berkeley physicists used an atom interferometer to try to detect anomalous forces from a chameleon field, a hypothetical dark energy particle. If chameleons exist, they would have a very small effect on the interaction between cesium atoms and an aluminum sphere. The group's failure to detect this effect narrows the search for the particle.

Credit

Holger Muller/UC Berkeley

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