Ponente
Descripción
Magnetic levitation technology offers force and displacement sensitivities at the quantum frontier, making it an attractive platform for probing the feeble interactions expected of beyond the Standard Model physics. Despite its promise, the case for magnetic levitation in fundamental physics applications is only just being built. In this talk, I will introduce two new experiments based on the Meissner levitation of a ferromagnet within a superconducting trap: POLONAISE (Probing Oscillations using Levitated Objects for Novel Accelerometry In Searches
of Exotic physics) and MORRIS (Magnetic Oscillatory Resonator for Rare-Interaction Studies). I will show how these experiments will have world-leading sensitivities to three fundamental physics cases: the hunt for ultralight dark matter, ultraheavy dark matter, and a non-Newtonian gravitational fifth force. I will present the results from the first searches for ultralight and ultraheavy dark matter using magnetic levitation technology around the dark matter masses $m \sim 10^{-13}\,\mathrm{eV}/c^2$ and $m\sim 10^{14}\,\mathrm{GeV}/c^2$, respectively. I will also show new constraints on fifth forces at $\mathcal{O}(\mathrm{mm})$ scales - currently the most sensitive in this regime. Our results demonstrate the power of magnetic levitation as a frontier tool for fundamental physics, opening new avenues for precision tests of physics and the hunt for dark matter.
