Nonadiabatic dynamics of two strongly coupled nanomechanical resonator modes

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2012
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Faust, Thomas
Rieger, Johannes
Krenn, Peter
Kotthaus, Jörg P.
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The Landau-Zener transition is a fundamental concept for dynamical quantum systems and has been studied in numerous fields of physics. Here, we present a classical mechanical model system exhibiting analogous behavior using two inversely tunable, strongly coupled modes of the same nanomechanical beam resonator. In the adiabatic limit, the anticrossing between the two modes is observed and the coupling strength extracted. Sweeping an initialized mode across the coupling region allows mapping of the progression from diabatic to adiabatic transitions as a function of the sweep rate.

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ISO 690FAUST, Thomas, Johannes RIEGER, Maximilian SEITNER, Peter KRENN, Jörg P. KOTTHAUS, Eva M. WEIG, 2012. Nonadiabatic dynamics of two strongly coupled nanomechanical resonator modes. In: Physical Review Letters. 2012, 109(3). ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.109.037205
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@article{Faust2012Nonad-22718,
  year={2012},
  doi={10.1103/PhysRevLett.109.037205},
  title={Nonadiabatic dynamics of two strongly coupled nanomechanical resonator modes},
  number={3},
  volume={109},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Faust, Thomas and Rieger, Johannes and Seitner, Maximilian and Krenn, Peter and Kotthaus, Jörg P. and Weig, Eva M.}
}
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