Ultra-high quality factor of a levitated nanomechanical oscillator

Tracy E. Northup; Lorenzo Dania; Dmitry S. Bykov; Florian Goschin; Markus Teller

doi:10.1117/12.3012138

13 March 2024 Ultra-high quality factor of a levitated nanomechanical oscillator

Tracy E. Northup, Lorenzo Dania, Dmitry S. Bykov, Florian Goschin, Markus Teller

Proceedings Volume PC12912, Quantum Sensing, Imaging, and Precision Metrology II; PC129121W (2024) https://doi.org/10.1117/12.3012138
Event: SPIE Quantum West, 2024, San Francisco, California, United States

Abstract

A levitated nanomechanical oscillator under ultra-high vacuum (UHV) is highly isolated from its environment. It has been predicted that this isolation leads to very low mechanical dissipation rates. However, a gap persists between predictions and experimental data. Here, we levitate a silica nanoparticle in a linear Paul trap at room temperature, at pressures as low as 7e-11 mbar. We measure a dissipation rate of 2*pi*80(20) nHz, corresponding to a quality factor exceeding 1e10, more than two orders of magnitude higher than previously shown. A study of the pressure dependence of the particle's damping and heating rates provides insight into the relative dissipation mechanisms.

Conference Presentation

Citation Download Citation

Tracy E. Northup, Lorenzo Dania, Dmitry S. Bykov, Florian Goschin, and Markus Teller "Ultra-high quality factor of a levitated nanomechanical oscillator", Proc. SPIE PC12912, Quantum Sensing, Imaging, and Precision Metrology II, PC129121W (13 March 2024); https://doi.org/10.1117/12.3012138

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