Cavity cooling of an optically levitated submicron particle

Creators: Kiesel, Nikolai; Blaser, Florian; Delić, Uroš; Grass, David; Kaltenbaek, Rainer; Aspelmeyer, Markus

Abstract

The coupling of a levitated submicron particle and an optical cavity field promises access to a unique parameter regime both for macroscopic quantum experiments and for high-precision force sensing. We report a demonstration of such controlled interactions by cavity cooling the center-of-mass motion of an optically trapped submicron particle. This paves the way for a light–matter interface that can enable room-temperature quantum experiments with mesoscopic mechanical systems.

Additional Information

© 2013 National Academy of Sciences. Freely available online through the PNAS open access option. Edited by David A. Weitz, Harvard University, Cambridge, MA, and approved July 16, 2013 (received for review May 14, 2013). Published online before print August 12, 2013, doi: 10.1073/pnas.1309167110 We thank O. Romero-Isart, A. C. Pflanzer, J. I. Cirac, P. Zoller, H. Ritsch, C. Genes, S. Hofer, G. D. Cole, W. Wieczorek, M. Arndt, and T. Wilk for stimulating discussions and support, and J. Schmöle for his graphical contributions. We acknowledge funding from the Austrian Science Fund (FWF) [Sonderforschungsbereich Foundations and Applications of Quantum Science (FOQUS)], the European Commission (Integrated Project Quantum Interfaces, Sensors and Communication based on Entanglement Q-ESSENCE, International Training Network Cavity Quantum Optomechanics cQOM), the European Research Council (ERC Starting Grant Quantum Optomechanics), The John Templeton Foundation (RQ-8251), and the European Space Agency (AO/1-6889/11/NL/CBi). N.K. acknowledges support by the Alexander von Humboldt Stiftung. U.D. and D.G. acknowledge support through the Doctoral Programme Complex Quantum Systems (CoQuS). R.K. acknowledges support from the Austrian Academy of Sciences through an APART Fellowship and from the European Commission through a Marie Curie Reintegration Grant. M.A. and R.K. acknowledge support through the Keck Institute for Space Studies. N.K. and F.B. contributed equally to this work. Author contributions: N.K., F.B., and M.A. designed research; N.K., F.B., U.D., D.G., R.K., and M.A. performed research; N.K., F.B., U.D., D.G., R.K., and M.A. analyzed data; and N.K., F.B., U.D., D.G., R.K., and M.A. wrote the paper. The authors declare no conflict of interest. This article is a PNAS Direct Submission. This article contains supporting information online at www.pnas.org/lookup/suppl/doi:10.1073/pnas.1309167110/-/DCSupplemental.

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