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Approaching the Quantum Limit of a Nanomechanical Resonator by M. D. LaHaye; O. Buu; B. Camarota; K. C. Schwab is a Medicine article available to read on EtoBox.

What is Approaching the Quantum Limit of a Nanomechanical Resonator about?

By coupling a single-electron transistor to a high–quality factor, 19.7-megahertz nanomechanical resonator, we demonstrate position detection approaching that set by the Heisenberg uncertainty principle limit. At millikelvin temperatures, position resolution a factor of 4.3 above the quantum limit is achieved and demonstrates the near-ideal performance of the single-electron transistor as a linear amplifier. We have observed the resonator's thermal motion at temperatures as low as 56 millikelvin, with quantum occupation factors of N ~TH~ = 58. The implications of this experiment reach from the ultimate limits of force microscopy to qubit readout for quantum information devices.

Who reads Approaching the Quantum Limit of a Nanomechanical Resonator?

Author

M. D. LaHaye; O. Buu; B. Camarota; K. C. Schwab

Publisher

American Association for the Advancement of Science (AAAS)

Published

2004

Language

EN

Field

Medicine (Social Sciences)