PIRSA:22090017

Measuring gravity at micron scale and other fun tricks with optically levitated microspheres

APA

Gratta, G. (2022). Measuring gravity at micron scale and other fun tricks with optically levitated microspheres. Perimeter Institute. https://pirsa.org/22090017

MLA

Gratta, Giorgio. Measuring gravity at micron scale and other fun tricks with optically levitated microspheres. Perimeter Institute, Sep. 21, 2022, https://pirsa.org/22090017

BibTex

          @misc{ pirsa_22090017,
            doi = {10.48660/22090017},
            url = {https://pirsa.org/22090017},
            author = {Gratta, Giorgio},
            keywords = {Particle Physics},
            language = {en},
            title = {Measuring gravity at micron scale and other fun tricks with optically levitated microspheres},
            publisher = {Perimeter Institute},
            year = {2022},
            month = {sep},
            note = {PIRSA:22090017 see, \url{https://pirsa.org}}
          }
          

Giorgio Gratta Stanford University

Abstract

I will describe a new 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, Chameleon fields and techniques to manipulate the various degrees of freedom of the trapped microspheres.