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Searching for new forces at micron scale and other fun tricks with levitated microsphere

Giorgio Gratta, Stanford University
Monday, May 15, 2023 - 4:00pm
PAA A-102

In recent years, levitated optomechanics has become a well established subfield. In this talk, I will describe a program of measurements in fundamental physics using optically levitated dielectric microspheres. The focus of the talk will be the recently completed first search for new, gravity-like interactions at micron scale using this novel technique. I will also show an array of other results, including searches for millicharged particles, tests of the neutrality of matter and techniques to manipulate the various degrees of freedom of the trapped microspheres.

Video Link (requires UW NetID)

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