Hopper, A;
Barker, PF;
(2024)
A levitated atom-nanosphere hybrid quantum system.
New Journal of Physics
, 26
(1)
, Article 013015. 10.1088/1367-2630/ad19f6.
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Abstract
Near-field, radially symmetric optical potentials supported by a levitated nanosphere can be used for sympathetic cooling and for creating a bound nanosphere-atom system analogous to a large molecule. We demonstrate that the long range, Coulomb-like potential produced by a single blue detuned field increases the collisional cross-section by eight orders of magnitude, allowing fast sympathetic cooling of a trapped nanosphere to microKelvin temperatures using cold atoms. By using two optical fields to create a combination of repulsive and attractive potentials, we demonstrate that a cold atom can be bound to a nanosphere creating a new levitated hybrid quantum system suitable for exploring quantum mechanics with massive particles.
| Type: | Article |
|---|---|
| Title: | A levitated atom-nanosphere hybrid quantum system |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1367-2630/ad19f6 |
| Publisher version: | http://dx.doi.org/10.1088/1367-2630/ad19f6 |
| Language: | English |
| Additional information: | Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 license, https://creativecommons.org/licenses/by/4.0/. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI |
| Keywords: | Levitated optomechanics, cold atoms, hybrid quantum systems, cold atom collisions |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10185739 |
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