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quant-ph2023
Ferromagnetic levitation and harmonic trapping of a milligram-scale Yttrium Iron Garnet sphere
Maria Fuwa, Ryosuke Sakagami, Tsuyoshi Tamegai
We report passive magnetic levitation and three-dimensional harmonic trapping of a 0.3 milligram, 0.5 millimeter diameter Yttrium Iron Garnet sphere at 4 K. The gradient of an exte…
quant-ph2023
Stable magnetic levitation of soft ferromagnets for macroscopic quantum mechanics
Maria Fuwa
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 tra…
quant-ph2021
Superconducting Acousto-optic Phase Modulator
Ayato Okada, Rekishu Yamazaki, Maria Fuwa +9
We report the development of a superconducting acousto-optic phase modulator fabricated on a lithium niobate substrate. A titanium-diffused optical waveguide is placed in a surface…