Quantum sensing and cooling in three-dimensional levitated cavity optomechanics

Toroš, M. and Monteiro, T.S. (2020) Quantum sensing and cooling in three-dimensional levitated cavity optomechanics. Physical Review Research, 2(2), 023228. (doi: 10.1103/PhysRevResearch.2.023228)

Abstract

Typical quantum cavity optomechanics allows cooling and detection of a single mechanical degree of freedom with its motion along the cavity axis. However, a recent breakthrough using cavities populated solely by coherent scattering (CS) allowing quantum ground-state cooling of levitated nanoparticles [U. Delić et al., Science 367, 892 (2020)], is uniquely three dimensional (3D) in character, with coupling along all three spatial axes. We present a reanalysis of current experiments and show that the underlying behavior is far from the addition of independent one dimensional spectral components and that cooling and sensing analysis must consider, to date neglected, nontrivial 3D hybridization effects arising from interferences between the x , y , z modes as well as the optical modes. These lead to new heating and sympathetic cooling channels and modify phonon occupancies. Unique to these systems, we find a close relation between cavity-mediated and direct hybridization terms that can completely suppress the 3D behavior.

• Item Type: Articles
• Additional Information: The authors acknowledge support from EPSRC Grant No. EP/N031105/1.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Toros, Dr Marko
• Authors: Toroš, M., and Monteiro, T.S.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review Research
• Publisher: American Physical Society
• ISSN: 2643-1564
• ISSN (Online): 2643-1564
• Published Online: 26 May 2020
• Copyright Holders: Copyright © 2020 American Physical Society
• First Published: First published in Physical Review Research 2(2): 023228
• Publisher Policy: Reproduced under a Creative Commons License