Nonlinear Micromechanical Casimir Oscillator

Details Nonlinear Micromechanical Casimir Oscillator Nonlinear Micromechanical Casimir Oscillator

2001-09-11

arxiv.org/abs/quant-ph/0109046v2

Phys. Rev. Lett. 87, 211801 (2001).

Physics

Quantum Physics

4 pages, 4 figures; added and rearranged references; added comments on sensitivity

Scientific paper

10.1103/PhysRevLett.87.211801

The Casimir force between uncharged metallic surfaces originates from quantum mechanical zero point fluctuations of the electromagnetic field. We demonstrate that this quantum electrodynamical effect has a profound influence on the oscillatory behavior of microstructures when surfaces are in close proximity (<= 100 nm). Frequency shifts, hysteretic behavior and bistability caused by the Casimir force are observed in the frequency response of a periodically driven micromachined torsional oscillator.

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