Mechanical dissipation below 1$\mu$Hz with a cryogenic diamagnetic-levitated micro-oscillator

• URL: http://arxiv.org/abs/2008.07940v2
• Date: Wed, 19 Aug 2020 02:03:16 GMT
• Title: Mechanical dissipation below 1$\mu$Hz with a cryogenic diamagnetic-levitated micro-oscillator
• Authors: Yingchun Leng, Rui Li, Xi Kong, Han Xie, Di Zheng, Peiran Yin, Fang Xiong, Tong Wu, Chang Kui Duan, Youwei Du, Zhang qi Yin, Pu Huang, and Jiangfeng Du
• Abstract summary: We report a diamagnetic-levitated micro-mechanical oscillator operating at a low temperature of 3K with measured dissipation as low as 0.59 $mu$Hz. The achieved dissipation is the lowest in micro- and nano-mechanical systems to date.
• Score: 16.2941358519469
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Ultralow dissipation plays an important role in sensing applications and exploring macroscopic quantum phenomena using micro-and nano-mechanical systems. We report a diamagnetic-levitated micro-mechanical oscillator operating at a low temperature of 3K with measured dissipation as low as 0.59 $\mu$Hz and a quality factor as high as $2 \times 10^7$. To the best of our knowledge the achieved dissipation is the lowest in micro- and nano-mechanical systems to date, orders of magnitude improvement over the reported state-of-the-art systems based on different principles. The cryogenic diamagnetic-levitated oscillator described here is applicable to a wide range of mass, making it a good candidate for measuring both force and acceleration with ultra-high sensitivity. By virtue of the naturally existing strong magnetic gradient, this system has great potential in quantum spin mechanics study.

Related papers

• A spin-refrigerated cavity quantum electrodynamic sensor [1.6713959634020665]
  Quantum sensors based on solid-state defects, in particular nitrogen-vacancy centers in diamond, enable precise measurement of magnetic fields, temperature, rotation, and electric fields. We introduce a cavity quantum electrodynamic (cQED) hybrid system operating in the strong coupling regime, which enables high readout fidelity of an NV ensemble. We demonstrate a broadband sensitivity of 580 fT/$sqrtmathrmHz$ around 15 kHz in ambient conditions.
  arXiv  Detail & Related papers  (2024-04-16T14:56:50Z)
• Imaging magnetism evolution of magnetite to megabar pressure range with quantum sensors in diamond anvil cell [57.91882523720623]
  We develop an in-situ magnetic detection technique at megabar pressures with high sensitivity and sub-microscale spatial resolution. We observe the macroscopic magnetic transition of Fe3O4 in the megabar pressure range from strong ferromagnetism (alpha-Fe3O4) to weak ferromagnetism (beta-Fe3O4) and finally to non-magnetism (gamma-Fe3O4) The presented method can potentially investigate the spin-orbital coupling and magnetism-superconductivity competition in magnetic systems.
  arXiv  Detail & Related papers  (2023-06-13T15:19:22Z)
• Stable magnetic levitation of soft ferromagnets for macroscopic quantum mechanics [0.0]
  We propose a system for passive magnetic levitation and three-dimensional harmonic trapping of soft ferromagnets. The utilization of soft ferromagnet's internal collective spin excitation may allow quantum mechanical phenomena with particles as large as the sub-millimeter-scale.
  arXiv  Detail & Related papers  (2023-03-31T07:22:49Z)
• Phononically shielded photonic-crystal mirror membranes for cavity quantum optomechanics [48.7576911714538]
  We present a highly reflective, sub-wavelength-thick membrane resonator featuring high mechanical quality factor. We construct a Fabry-Perot-type optical cavity, with the membrane forming one terminating mirror. We demonstrate optomechanical sideband cooling to mK-mode temperatures, starting from room temperature.
  arXiv  Detail & Related papers  (2022-12-23T04:53:04Z)
• Quantum Magnetometer with Dual-Coupling Optomechanics [15.114575306125545]
  An experimentally feasible magnetometer based on a dual-coupling optomechanical system is proposed. The sensitivity of a specific measurement can reach to the order of $10-17rm T/sqrtHz$ in the presence of dissipations.
  arXiv  Detail & Related papers  (2022-05-01T09:37:33Z)
• Continuous-Wave Frequency Upconversion with a Molecular Optomechanical Nanocavity [46.43254474406406]
  We use molecular cavity optomechanics to demonstrate upconversion of sub-microwatt continuous-wave signals at $sim$32THz into the visible domain at ambient conditions. The device consists in a plasmonic nanocavity hosting a small number of molecules. The incoming field resonantly drives a collective molecular vibration, which imprints an optomechanical modulation on a visible pump laser.
  arXiv  Detail & Related papers  (2021-07-07T06:23:14Z)
• Surpassing the Energy Resolution Limit with ferromagnetic torque sensors [55.41644538483948]
  We evaluate the optimal magnetic field resolution taking into account the thermomechanical noise and the mechanical detection noise at the standard quantum limit. We find that the Energy Resolution Limit (ERL), pointed out in recent literature, can be surpassed by many orders of magnitude.
  arXiv  Detail & Related papers  (2021-04-29T15:44:12Z)
• Demonstrating levitation within a microwave cavity [0.0]
  We report the first successful experiments with a levitated millimeter-scale neodymium magnet within a centimeter-scale superconducting aluminum coaxial quarter-wave stub cavity. Resonance spectra are collected via a vector network analyzer (VNA) between temperatures of 5 K and 50 mK revealing movement of the magnet inside of the cavity.
  arXiv  Detail & Related papers  (2021-01-05T01:42:09Z)
• Spin Entanglement and Magnetic Competition via Long-range Interactions in Spinor Quantum Optical Lattices [62.997667081978825]
  We study the effects of cavity mediated long range magnetic interactions and optical lattices in ultracold matter. We find that global interactions modify the underlying magnetic character of the system while introducing competition scenarios. These allow new alternatives toward the design of robust mechanisms for quantum information purposes.
  arXiv  Detail & Related papers  (2020-11-16T08:03:44Z)
• Force and acceleration sensing with optically levitated nanogram masses at microkelvin temperatures [57.72546394254112]
  This paper demonstrates cooling of the center-of-mass motion of 10 $mu$m-diameter optically levitated silica spheres to an effective temperature of $50pm22 mu$K. It is shown that under these conditions the spheres remain stably trapped at pressures of $sim 10-7$ mbar with no active cooling for periods longer than a day.
  arXiv  Detail & Related papers  (2020-01-29T16:20:35Z)
• Ultralow mechanical damping with Meissner-levitated ferromagnetic microparticles [0.0]
  We show experimentally that micromagnets levitated above type-I superconductors feature very low damping at low frequency and low temperature. Our results open the way towards the development of ultrasensitive magnetomechanical sensors with potential applications to magnetometry and gravimetry.
  arXiv  Detail & Related papers  (2019-12-27T17:30:04Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.