Setter, Ashley, Toroš, Marko, Ralph, Jason F 
ORCID: 0000-0002-4946-9948 and Ulbricht, Hendrik
(2018)
Real-Time Kalman Filter: Cooling of an Optically Levitated Nanoparticle.
Physical Review A (Atomic, Molecular and Optical Physics), 97 (3).
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 (FPGA), is sufficient to perform closed-loop parametric feedback cooling of the centre of mass motion to sub-Kelvin temperatures. The translational centre of mass motion along the optical axis of the trapped nanoparticle has been cooled by three orders of magnitude, from a temperature of 300K to a temperature of 162 +/- 15mK.
| Item Type: | Article |
|---|---|
| Additional Information: | 8 pages, 3 figures |
| Uncontrolled Keywords: | quant-ph, cond-mat.mes-hall, physics.app-ph, physics.optics |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 14 Mar 2018 09:29 |
| Last Modified: | 19 Jan 2023 06:38 |
| DOI: | 10.1103/PhysRevA.97.033822 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3018971 |
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