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|Title:||Driving particle current through narrow channels using a classical pump|
|Publisher:||The American Physical Society|
|Citation:||Physical Review Letters, 2007, Vol.99, p190601|
|Abstract:||We study a symmetric exclusion process in which the hopping rates at two chosen adjacent sites vary periodically in time and have a relative phase difference. This mimics a colloidal suspension subjected to external time-dependent modulation of the local chemical potential. The two special sites act as a classical pump by generating an oscillatory current with a nonzero dc value whose direction depends on the applied phase difference. We analyze various features in this model through simulations and obtain an expression for the dc current via a novel perturbative treatment.|
|Copyright:||2007 The American Physical Society|
|Appears in Collections:||Research Papers (TP)|
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