Setter, A;
Toroš, M;
Ralph, JF;
Ulbricht, H;
(2018)
Real-time Kalman filter: Cooling of an optically levitated nanoparticle.
Physical Review A
, 97
(3)
, Article 033822. 10.1103/PhysRevA.97.033822.
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Abstract
We demonstrate that a Kalman filter applied to estimate the position of an optically levitated nanoparticle, and operated in real-time within a field programmable gate array, is sufficient to perform closed-loop parametric feedback cooling of the center-of-mass motion to sub-Kelvin temperatures. The translational center-of-mass motion along the optical axis of the trapped nanoparticle has been cooled by 3 orders of magnitude, from a temperature of 300 K to a temperature of 162±15 mK.
| Type: | Article |
|---|---|
| Title: | Real-time Kalman filter: Cooling of an optically levitated nanoparticle |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevA.97.033822 |
| Publisher version: | https://doi.org/10.1103/PhysRevA.97.033822 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Interdisciplinary Physics, Atomic, Molecular & Optical, General Physics |
| 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 |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10066201 |
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