Stochastic resonance in colloidal systems

Type of Publication: Journal article
Publication status: Published
URI (citable link): http://nbn-resolving.de/urn:nbn:de:bsz:352-0-412992
Author: Babič, Dušan; Schmitt, C.; Poberaj, I.; Bechinger, Clemens
Year of publication: 2004
Published in: Europhysics Letters (EPL) ; 67 (2004), 2. - pp. 158-164. - ISSN 0295-5075. - eISSN 1286-4854
DOI (citable link): https://dx.doi.org/10.1209/epl/i2004-10055-3
Summary:
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
Subject (DDC): 530 Physics
Link to License: In Copyright

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BABIČ, Dušan, C. SCHMITT, I. POBERAJ, Clemens BECHINGER, 2004. Stochastic resonance in colloidal systems. In: Europhysics Letters (EPL). 67(2), pp. 158-164. ISSN 0295-5075. eISSN 1286-4854. Available under: doi: 10.1209/epl/i2004-10055-3

@article{Babic2004Stoch-39428, title={Stochastic resonance in colloidal systems}, year={2004}, doi={10.1209/epl/i2004-10055-3}, 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} }

Poberaj, I. Stochastic resonance in colloidal systems Babič, Dušan Poberaj, I. terms-of-use Schmitt, C. 2004 2017-06-27T13:46:07Z Bechinger, Clemens eng Schmitt, C. Babič, Dušan 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 v<sub>Ω</sub> 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 v<sub>Ω</sub> Bechinger, Clemens 2017-06-27T13:46:07Z

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