2016
DOI: 10.1007/978-3-319-28028-8_19
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Feedback Control of Colloidal Transport

Abstract: We review recent work on feedback control of one-dimensional colloidal systems, both with instantaneous feedback and with time delay. The feedback schemes are based on measurement of the average particle position, a natural control target for an ensemble of colloidal particles, and the systems are investigated via the Fokker-Planck equation for overdamped Brownian particles. Topics include the reversal of current and the emergence of current oscillations, transport in ratchet systems, and the enhancement of mo… Show more

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Cited by 11 publications
(11 citation statements)
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“…Our model can be extended to higher spatial dimensions [69], to harmonic confinement [86][87][88][89], to external fields [90,91], and to include inertia [5,70,71,[92][93][94][95] where an analytical solution seems to be in reach as well. Moreover different combinations of friction and memory kernel as well as colored noise can be considered for future work [96][97][98][99][100], for instance, Mittag-Leffler noise [101,102] or power-law memory [103,104]. Finally the collective behavior of many interacting active particles in a viscoelastic medium [105][106][107][108][109][110][111] needs to be explored more and will be an important area of future research.…”
Section: Discussionmentioning
confidence: 99%
“…Our model can be extended to higher spatial dimensions [69], to harmonic confinement [86][87][88][89], to external fields [90,91], and to include inertia [5,70,71,[92][93][94][95] where an analytical solution seems to be in reach as well. Moreover different combinations of friction and memory kernel as well as colored noise can be considered for future work [96][97][98][99][100], for instance, Mittag-Leffler noise [101,102] or power-law memory [103,104]. Finally the collective behavior of many interacting active particles in a viscoelastic medium [105][106][107][108][109][110][111] needs to be explored more and will be an important area of future research.…”
Section: Discussionmentioning
confidence: 99%
“…(11) or eqns. (12). At very long times, the particle visits all the orientations with the same probability, that is the angular probability density is a constant P (φ, t) = 1 2π .…”
Section: Coarse-grained Equations Of Motionmentioning
confidence: 99%
“…Some of these strategies are based on feedback mechanisms, where the propulsion velocity [10] or the direction of motion of the particle are continuously adapted depending on its current position and/or orientation. Indeed, feedback control [11] is a concept currently gaining growing attention in various areas of colloidal transport, including transport of passive colloids [12][13][14][15], (thermophoretic) control of DNA molecules [16], manipulation for biomedical engineering [17], and control of active particles [18,19] . An example of feedback control in the area of active colloidal particles is the photon nudging method [19], where the propulsion generated by a weak laser is turned on or off when the swimmer moves towards or away from the target (for a theoretical description, see [20]).…”
Section: Introductionmentioning
confidence: 99%
“…Although it is slightly different from the original problem setting in Ref. [13], we consider the following Langevin equation [21,22]:…”
Section: Sagawa-ueda-jarzynski Relationmentioning
confidence: 99%