@article{fcf38ca0c8a545fcb876e298721d1eaf,
title = "Discrete-time quadrature feedback cooling of a radio-frequency mechanical resonator",
abstract = "We have employed a feedback cooling scheme, which combines high-frequency mixing with digital signal processing. The frequency and damping rate of a 2 MHz micromechanical resonator embedded in a dc SQUID are adjusted with the feedback, and active cooling to a temperature of 14.3 mK is demonstrated. This technique can be applied to GHz resonators and allows for flexible control strategies.",
author = "M. Poot and S. Etaki and H. Yamaguchi and {Van Der Zant}, {H. S.J.}",
note = "Funding Information: We thank Hidde Westra, Khasahir Babei Gavan, Abah Obinna, and Joris van der Spek for their help with the measurements. This work was supported in part by FOM, NWO (VICI grant), NanoNed, EU FP7 STREP project (QNEMS), and JSPS KAKENHI (Grant Nos. 20246064 and 23241046).",
year = "2011",
month = jul,
day = "4",
doi = "10.1063/1.3608148",
language = "English",
volume = "99",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics",
number = "1",
}