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Surmounting Barriers: The Benefit of Hydrodynamic Interactions

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 نشر من قبل Holger Stark
 تاريخ النشر 2005
  مجال البحث فيزياء
والبحث باللغة English
 تأليف Christoph Lutz




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We experimentally and theoretically investigate the collective behavior of three colloidal particles that are driven by a constant force along a toroidal trap. Due to hydrodynamic interactions, a characteristic limit cycle is observed. When we additionally apply a periodic sawtooth potential, we find a novel caterpillar-like motional sequence that is dominated by hydrodynamic interactions and promotes the surmounting of potential barriers by the particles.

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