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Cavity opto-mechanics using an optically levitated nanosphere

Chang, D. E. and Regal, C. A. and Papp, S. B. and Wilson, D. J. and Ye, J. and Painter, O. and Kimble, H. J. and Zoller, P. (2010) Cavity opto-mechanics using an optically levitated nanosphere. Proceedings of the National Academy of Sciences of the United States of America, 107 (3). pp. 1005-1010. ISSN 0027-8424. PMCID PMC2824320.

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Recently, remarkable advances have been made in coupling a number of high-Q modes of nano-mechanical systems to high-finesse optical cavities, with the goal of reaching regimes in which quantum behavior can be observed and leveraged toward new applications. To reach this regime, the coupling between these systems and their thermal environments must be minimized. Here we propose a novel approach to this problem, in which optically levitating a nano-mechanical system can greatly reduce its thermal contact, while simultaneously eliminating dissipation arising from clamping. Through the long coherence times allowed, this approach potentially opens the door to ground-state cooling and coherent manipulation of a single mesoscopic mechanical system or entanglement generation between spatially separate systems, even in room-temperature environments. As an example, we show that these goals should be achievable when the mechanical mode consists of the center-of-mass motion of a levitated nanosphere.

Item Type:Article
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URLURL TypeDescription DOIArticle CentralArticle Information
Painter, O.0000-0002-1581-9209
Additional Information:© 2010 National Academy of Sciences. Freely available online through the PNAS open access option. Contributed by H. Jeffrey Kimble, November 10, 2009 (sent for review October 17, 2009). Published online before print December 31, 2009. D.C. and S.P. acknowledge support from the Gordon and Betty Moore Foundation through Caltech’s Center for the Physics of Information, D.C. from the National Science Foundation under Grant No. PHY-0803371, C.R. from a Millikan Postdoctoral Fellowship, and J.Y. and P.Z. from a Moore Fellowship during their stay at Caltech. Work at Innsbruck is supported by the Austrian Science Fund and EU Projects. Research of C.R., S.P., D.W., and H.J.K. is supported by the NSF under Grant No. PHY-0652914, the Army Research Office, and Northrop Grumman Space Technology. Author contributions: D.E.C. and P.Z. designed research; D.E.C., C.A.R., S.B.P., D.J.W., J.Y., O.P., H.J.K., and P.Z. performed research; and D.E.C. wrote the paper. The authors declare no conflict of interest. This article contains supporting information online at
Funding AgencyGrant Number
Gordon and Betty Moore FoundationUNSPECIFIED
Robert A. Millikan FellowshipUNSPECIFIED
FWF Der WissenschaftsfondsUNSPECIFIED
Army Research Office (ARO)UNSPECIFIED
Northrop GrummanUNSPECIFIED
Caltech Center for the Physics of InformationUNSPECIFIED
Subject Keywords:entanglement; optical levitation; quantum information
Issue or Number:3
PubMed Central ID:PMC2824320
Record Number:CaltechAUTHORS:20100216-151429120
Persistent URL:
Official Citation:D. E. Chang, C. A. Regal, S. B. Papp, D. J. Wilson, J. Ye, O. Painter, H. J. Kimble, and P. Zoller Cavity opto-mechanics using an optically levitated nanospherePNAS 2010 107:1005-1010; published online before print December 31, 2009, doi:10.1073/pnas.0912969107
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:17491
Deposited By: Tony Diaz
Deposited On:17 Feb 2010 00:36
Last Modified:02 Jun 2020 21:23

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