Measurement of gravitational coupling between millimetre-sized masses

T Westphal, H Hepach, J Pfaff, M Aspelmeyer - Nature, 2021 - nature.com
Gravity is the weakest of all known fundamental forces and poses some of the most
important open questions to modern physics: it remains resistant to unification within the …

Massive quantum systems as interfaces of quantum mechanics and gravity

S Bose, I Fuentes, AA Geraci, SM Khan… - arXiv preprint arXiv …, 2023 - arxiv.org
The traditional view from particle physics is that quantum gravity effects should only become
detectable at extremely high energies and small length scales. Due to the significant …

Mechanical quantum sensing in the search for dark matter

D Carney, G Krnjaic, DC Moore… - Quantum Science …, 2021 - iopscience.iop.org
Numerous astrophysical and cosmological observations are best explained by the existence
of dark matter, a mass density which interacts only very weakly with visible, baryonic matter …

Experiments with levitated force sensor challenge theories of dark energy

P Yin, R Li, C Yin, X Xu, X Bian, H Xie, CK Duan… - Nature Physics, 2022 - nature.com
Various theories have been proposed for the nature of dark energy. It is therefore essential
to directly verify or rule out these theories by experiment. Despite substantial efforts in …

High- Magnetic Levitation and Control of Superconducting Microspheres at Millikelvin Temperatures

J Hofer, R Gross, G Higgins, H Huebl, OF Kieler… - Physical Review Letters, 2023 - APS
We report the levitation of a superconducting lead-tin sphere with 100 μ m diameter
(corresponding to a mass of 5.6 μ g) in a static magnetic trap formed by two coils in an anti …

Revealing the velocity uncertainties of a levitated particle in the quantum ground state

M Kamba, K Aikawa - Physical Review Letters, 2023 - APS
We demonstrate time-of-flight measurements for an ultracold levitated nanoparticle and
reveal its velocity for the translational motion brought to the quantum ground state. We …

[PDF][PDF] 惯导应用中光力加速度计前沿研究综述

王一松, 胡姝玲, 张雍丰 - Laser & Optoelectronics Progress, 2022 - researching.cn
摘要光力加速度计的测试质量不受外界环境干扰并且它的光学检测精度高, 可实现超灵敏加速度
探测, 广泛应用于各种惯性导航, 超精密微重力探测, 娱乐等领域. 光力加速度计系统分为装载 …

Levitated optomechanics with meta-atoms

S Lepeshov, N Meyer, P Maurer, O Romero-Isart… - Physical Review Letters, 2023 - APS
We propose to introduce additional control in levitated optomechanics by trapping a meta-
atom, ie, a subwavelength and high-permittivity dielectric particle supporting Mie …

Macroscopic dark matter detection with gravitational wave experiments

Y Du, VSH Lee, Y Wang, KM Zurek - Physical Review D, 2023 - APS
We study signatures of macroscopic dark matter (DM) in current and future gravitational
wave (GW) experiments. Transiting DM with a mass of∼ 10 5–10 15 kg that saturates the …

Limits on the abundance of millicharged particles bound to matter

G Afek, F Monteiro, J Wang, B Siegel, S Ghosh… - Physical Review D, 2021 - APS
Millicharged particles (mCPs) are hypothesized particles possessing an electric charge that
is a fraction of the charge of the electron. We report a search for mCPs with charges≳ 10-4 e …