Rocking feedback controlled ratchets

Details Rocking feedback controlled ratchets Rocking feedback controlled ratchets

2009-02-23

arxiv.org/abs/0902.3941v2

Phys. Rev. E 80, 031128 (2009)

Physics

Condensed Matter

Other Condensed Matter

LaTeX, 8 pages, 8 figures. To appear in Phys. Rev. E

Scientific paper

10.1103/PhysRevE.80.031128

We investigate the different regimes that emerge when a periodic driving force, the rocking force, acts on a collective feedback flashing ratchet. The interplay of the rocking and the feedback control gives a rich dynamics with different regimes presenting several unexpected novel features. In particular, we show that for both the one-particle ratchet and the collective version of the ratchet an appropriate rocking increases the flux. This mechanism gives the maximum flux that has been achieved in a ratchet device without an a priori bias.

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