Stable magnetic levitation of soft ferromagnets for macroscopic quantum mechanics

M Fuwa - Physical Review A, 2023 - APS
We propose a system for passive magnetic levitation and three-dimensional harmonic
trapping of soft ferromagnets. Our protocol utilizes the magnetic-field gradient for vertical …

Test of the Equivalence Principle for Superconductors

MP Ross, SM Fleischer, IA Paulson, P Lamb… - arXiv preprint arXiv …, 2024 - arxiv.org
We searched for violations of the weak equivalence principle using a cryogenic torsion
balance with a pendulum comprised of superconducting niobium and copper. We constrain …

[图书][B] Equivalence Principle Tests and Direct Searches for Ultra-Light Dark Matter with Fused-Silica Torsion Fibers

EA Shaw - 2023 - search.proquest.com
Torsion balances are precision instruments for testing gravity and other experiments.
However, they are limited by thermal noise and angular readout noise. This dissertation …