Nanomechanical measurements of a superconducting qubit

M. D. LaHaye, J. Suh, P. M. Echternach, K. C. Schwab and M. L. Roukes ()
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M. D. LaHaye: Kavli Nanoscience Institute, Condensed Matter Physics, MS 114-36,
J. Suh: Kavli Nanoscience Institute, Condensed Matter Physics, MS 114-36,
P. M. Echternach: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA
K. C. Schwab: Applied Physics, California Institute of Technology, Pasadena, California 91125, USA
M. L. Roukes: Kavli Nanoscience Institute, Condensed Matter Physics, MS 114-36,

Nature, 2009, vol. 459, issue 7249, 960-964

Abstract: Nanomechanical vibrations Fabricating tiny mechanical structures whose vibrational motion is purely quantum mechanical is a long-standing goal in physics, both from a fundamental perspective and in view of the applications that they could potentially enable. A parallel — and equally important — goal is the development of a scheme for observing and controlling such tiny motions. LaHaye et al. have made important progress in this direction by coupling a tiny mechanical resonator to a superconducting two-level quantum system (qubit). The state of the superconducting qubit can be measured through its influence on the vibrations of the resonator. Such a coupled device configuration should ultimately enable the preparation and measurement of exotic quantum states of motion.

Date: 2009
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DOI: 10.1038/nature08093

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