Real-Time Kalman Filter: Cooling of an Optically Levitated Nanoparticle

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-.

Text 1712.07921v2.pdf - Author Accepted Manuscript Download (628kB)

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:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3018971