First Search for Ultralight Dark Matter Using a Magnetically Levitated Particle

• URL: http://arxiv.org/abs/2409.03814v1
• Date: Thu, 5 Sep 2024 18:00:00 GMT
• Title: First Search for Ultralight Dark Matter Using a Magnetically Levitated Particle
• Authors: Dorian W. P. Amaral, Dennis G. Uitenbroek, Tjerk H. Oosterkamp, Christopher D. Tunnell,
• Abstract summary: We perform the first search for ultralight dark matter using a magnetically levitated particle. We find no evidence of a signal and derive limits on dark matter. We propose the POLONAISE experiment, featuring short, medium, and long-term upgrades.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We perform the first search for ultralight dark matter using a magnetically levitated particle. A sub-millimeter permanent magnet is levitated in a superconducting trap with a measured force sensitivity of $0.2\,\mathrm{fN/\sqrt{Hz}}$. We find no evidence of a signal and derive limits on dark matter coupled to the difference between baryon and lepton number, $B - L$, in the mass range $(1.10360 \text{ - } 1.10485) \times 10^{-13}\,\mathrm{eV} / c^2$. Our most stringent limit on the coupling strength is $g_{B - L} \lesssim 2.98 \times 10^{-21}$. We propose the POLONAISE (Probing Oscillations using Levitated Objects for Novel Accelerometry in Searches of Exotic physics) experiment, featuring short-, medium-, and long-term upgrades that will give us leading sensitivity in a wide mass range and demonstrating the promise of this novel quantum sensing technology in the hunt for dark matter.

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