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Demonstration of an ultracold micro-optomechanical oscillator in a cryogenic cavity

Gröblacher, Simon and Hertzberg, Jared B. and Vanner, Michael R. and Cole, Garrett D. and Gigan, Sylvain and Schwab, K. C. and Aspelmeyer, Markus (2009) Demonstration of an ultracold micro-optomechanical oscillator in a cryogenic cavity. Nature Physics, 5 (7). pp. 485-488. ISSN 1745-2473.

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Preparing and manipulating quantum states of mechanical resonators is a highly interdisciplinary undertaking that now receives enormous interest for its far-reaching potential in fundamental and applied science. Up to now, only nanoscale mechanical devices achieved operation close to the quantum regime. We report a new micro-optomechanical resonator that is laser cooled to a level of 30 thermal quanta. This is equivalent to the best nanomechanical devices, however, with a mass more than four orders of magnitude larger (43 ng versus 1 pg) and at more than two orders of magnitude higher environment temperature (5 K versus 30 mK). Despite the large laser-added cooling factor of 4,000 and the cryogenic environment, our cooling performance is not limited by residual absorption effects. These results pave the way for the preparation of 100-m scale objects in the quantum regime. Possible applications range from quantum-limited optomechanical sensing devices to macroscopic tests of quantum physics.

Item Type:Article
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URLURL TypeDescription Paper
Schwab, K. C.0000-0001-8216-4815
Additional Information:© 2009 Nature Publishing Group. Received 5 March 2009; accepted 1 May 2009; published online 7 June 2009. We thank R. Lalezari (ATFilms) and M. Metzler, R. Ilic and M. Skvarla (CNF) and F. Blaser, T. Corbitt and W. Lang for discussion and support. We acknowledge support by the Austrian Science Fund FWF (Projects P19539, L426, START), by the European Commission (Projects MINOS, IQOS) and by the Foundational Questions Institute (Grants RFP2-08-03, RFP2-08-27). Part of this work was carried out at the Cornell NanoScale Facility, a member of the National Nanotechnology Infrastructure Network, which is supported by the National Science Foundation (Grant ECS-0335765). S.Gr. is a recipient of a DOC-fellowship of the Austrian Academy of Sciences and G.D.C. of a Marie Curie Fellowship of the European Commission. S.Gr. and M.R.V. are members of the FWF doctoral program Complex Quantum Systems (W1210). Author contributions: All authors have made a significant contribution to the concept, design, execution or interpretation of the presented work.
Funding AgencyGrant Number
FWF Der WissenschaftsfondsP19539
FWF Der WissenschaftsfondsL426
FWF Der WissenschaftsfondsSTART
European CommissionUNSPECIFIED
Foundational Questions Institute (FQXI)RFP2-08-03
Foundational Questions Institute (FQXI)RFP2-08-27
Austrian Academy of SciencesUNSPECIFIED
FWF Der WissenschaftsfondsW1210
Marie Curie FellowshipUNSPECIFIED
Subject Keywords:Electronics; photonics and device physics
Issue or Number:7
Record Number:CaltechAUTHORS:20090828-161056938
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:15430
Deposited By: George Porter
Deposited On:11 Sep 2009 18:13
Last Modified:03 Oct 2019 00:57

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