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Diffusion of a Brownian ellipsoid in a force field
Stockholm University, Nordic Institute for Theoretical Physics (Nordita).
Stockholm University, Nordic Institute for Theoretical Physics (Nordita). Aalto University, Finland.
Stockholm University, Nordic Institute for Theoretical Physics (Nordita).
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Number of Authors: 5
2016 (English)In: Europhysics letters, ISSN 0295-5075, E-ISSN 1286-4854, Vol. 114, no 3, 30005Article in journal (Refereed) Published
Abstract [en]

We calculate the effective long-term convective velocity and dispersive motion of an ellipsoidal Brownian particle in three dimensions when it is subjected to a constant external force. This long-term motion results as a net average behavior from the particle rotation and translation on short time scales. Accordingly, we apply a systematic multi-scale technique to derive the effective equations of motion valid on long times. We verify our theoretical results by comparing them to numerical simulations.

Place, publisher, year, edition, pages
2016. Vol. 114, no 3, 30005
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Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-132510DOI: 10.1209/0295-5075/114/30005ISI: 000379522200005OAI: oai:DiVA.org:su-132510DiVA: diva2:952943
Available from: 2016-08-16 Created: 2016-08-15 Last updated: 2016-08-16Bibliographically approved

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Bo, StefanoDias, MarceloEichhorn, RalfMarino, Raffaele
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Nordic Institute for Theoretical Physics (Nordita)
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Europhysics letters
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