Stochastic resonance in colloidal systems

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2004
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Babič, Dušan
Schmitt, C.
Poberaj, I.
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We investigate the dynamical properties of a colloidal particle in a double-well potential which is periodically modulated in time. In case of the modulation corresponding to a tilt of the potential (asymmetric modulation), stochastic resonance is observed when the modulation frequency vΩ matches one half of the Kramers frequency of the unperturbed potential. In contrast, when only the potential barrier height is modulated (symmetric modulation), no synchronization between the modulation and the particle dynamics is observed as demonstrated by the lack of a peak in the power spectrum at vΩ

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ISO 690BABIČ, Dušan, C. SCHMITT, I. POBERAJ, Clemens BECHINGER, 2004. Stochastic resonance in colloidal systems. In: Europhysics Letters (EPL). 2004, 67(2), pp. 158-164. ISSN 0295-5075. eISSN 1286-4854. Available under: doi: 10.1209/epl/i2004-10055-3
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@article{Babic2004Stoch-39428,
  year={2004},
  doi={10.1209/epl/i2004-10055-3},
  title={Stochastic resonance in colloidal systems},
  number={2},
  volume={67},
  issn={0295-5075},
  journal={Europhysics Letters (EPL)},
  pages={158--164},
  author={Babič, Dušan and Schmitt, C. and Poberaj, I. and Bechinger, Clemens}
}
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