April 30, 2015
An artistic illustration of a quantum-mechanical monopole. Credit: Heikka Valja.
AMHERST, Mass.—Building on his own previous research, Amherst College professor David S. Hall ’91 and a team of international collaborators have experimentally identified a pointlike monopole in a quantum field for the first time. The discovery, announced this week, gives scientists further insight into the elusive monopole magnet, an elementary particle that researchers believe exists but have not yet seen in nature.