A macroscopic mechanical resonator driven by mesoscopic electrical back-action

Joel Stettenheim, Madhu Thalakulam, Feng Pan, Mustafa Bal, Zhonqing Ji, Weiwei Xue, Loren Pfeiffer, K. W. West, M. P. Blencowe and A. J. Rimberg ()
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Joel Stettenheim: Dartmouth College, Hanover, New Hampshire 03755, USA
Madhu Thalakulam: Rice Quantum Institute, Rice University, Houston, Texas 77005, USA
Feng Pan: Dartmouth College, Hanover, New Hampshire 03755, USA
Mustafa Bal: Dartmouth College, Hanover, New Hampshire 03755, USA
Zhonqing Ji: Rice University, Houston, Texas 77005, USA
Weiwei Xue: Dartmouth College, Hanover, New Hampshire 03755, USA
Loren Pfeiffer: Bell Laboratories, Alcatel–Lucent, Murray Hill, New Jersey 07974, USA
K. W. West: Bell Laboratories, Alcatel–Lucent, Murray Hill, New Jersey 07974, USA
M. P. Blencowe: Dartmouth College, Hanover, New Hampshire 03755, USA
A. J. Rimberg: Dartmouth College, Hanover, New Hampshire 03755, USA

Nature, 2010, vol. 466, issue 7302, 86-90

Abstract: Tunnelling electrons pack a punch When electrons or photons are used to detect the motion of a mechanical resonator, they each exert a tiny force on the resonator, thereby subtly changing its motion. Such 'back-actions' are observable, for example, in carbon nanotube resonators, where single electrons have been found to influence the mechanical motion of the nanotubes. Stettenheim et al. report an even more striking example of the phenomenon, where electrons tunnelling through a semiconductor quantum device are found to cause vibrations of the host crystal, which is massive compared to the electrons. The authors compare the effect with a flea causing metre-scale vibrations in Mount Everest.

Date: 2010
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DOI: 10.1038/nature09123

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