Directed transport with real-time steering and drifts along predesigned paths using a Brownian motor

Directed transport with real-time steering and drifts along predesigned paths using a Brownian motor

We have realized real-time steering of the directed transport in a Brownian motor based on cold atoms in optical lattices and demonstrate drifts along predesigned paths. The transport is induced by spatiotemporal asymmetries in the system, where we can control the spatial part, and we show that the...

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Veröffentlicht in:Physical review. E, Statistical, nonlinear, and soft matter physics Statistical, nonlinear, and soft matter physics, 2011-02, Vol.83 (2 Pt 1), p.020101-020101, Article 020101
Hauptverfasser: Hagman, H, Zelan, M, Dion, C M, Kastberg, A
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Sprache:eng
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Condensed Matter
Physics
Quantum Physics
Statistical Mechanics
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container_issue 2 Pt 1
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container_title Physical review. E, Statistical, nonlinear, and soft matter physics
container_volume 83
creator Hagman, H
Zelan, M
Dion, C M
Kastberg, A
description We have realized real-time steering of the directed transport in a Brownian motor based on cold atoms in optical lattices and demonstrate drifts along predesigned paths. The transport is induced by spatiotemporal asymmetries in the system, where we can control the spatial part, and we show that the response to changes in asymmetry is very fast. In addition to directional steering, a real-time control of the magnitude of the average drift velocity and an on-off switching of the motor are also demonstrated. We use a noninvasive real-time detection of the transport, enabling feedback control of the system.
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subjects Condensed Matter
Physics
Quantum Physics
Statistical Mechanics
title Directed transport with real-time steering and drifts along predesigned paths using a Brownian motor
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