Short Range Force Sensing with a Trapped Atom Interferometer

Explore recent advancements in quantum sensing of short-range forces using a trapped atom interferometer in this 22-minute conference talk from the Workshop on "Blackbody Radiation Induced Effects and Phenomena" at the Erwin Schrödinger International Institute for Mathematics and Physics. Discover how ultracold atoms are transported near a dielectric mirror surface and trapped in a vertical lattice to create a Ramsey-type interferometer. Learn about the measurement of attractive forces at micrometer distances from the surface, comparing the observed forces to expected Casimir Polder forces and discussing potential influences of parasitic electric fields. Examine the stability and precision of local force measurements, with results reaching 6 x 10^-28 N at 1s measurement time and averaging down to approximately 2 x 10^-29 N at 2000 s, representing about 5% of the Casimir Polder force. Gain insights into cutting-edge experimental techniques and their applications in probing fundamental physical interactions at short ranges.