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Dimensional coupling-induced current reversal in two-dimensional driven lattices

Mukhopadhyay, A.K. and Xie, T. and Liebchen, B. and Schmelcher, P. (2018):
Dimensional coupling-induced current reversal in two-dimensional driven lattices.
In: Phys. Rev. E, 97, (5), ISSN 24700053,
DOI: 10.1103/PhysRevE.97.050202,
[Article]

Abstract

We show that the direction of directed particle transport in a two-dimensional ac-driven lattice can be dynamically reversed by changing the structure of the lattice in the direction perpendicular to the applied driving force. These structural changes introduce dimensional coupling effects, the strength of which governs the timescale of the current reversals. The underlying mechanism is based on the fact that dimensional coupling allows the particles to explore regions of phase space which are inaccessible otherwise. The experimental realization for cold atoms in ac-driven optical lattices is discussed.

Item Type: Article
Erschienen: 2018
Creators: Mukhopadhyay, A.K. and Xie, T. and Liebchen, B. and Schmelcher, P.
Title: Dimensional coupling-induced current reversal in two-dimensional driven lattices
Language: English
Abstract:

We show that the direction of directed particle transport in a two-dimensional ac-driven lattice can be dynamically reversed by changing the structure of the lattice in the direction perpendicular to the applied driving force. These structural changes introduce dimensional coupling effects, the strength of which governs the timescale of the current reversals. The underlying mechanism is based on the fact that dimensional coupling allows the particles to explore regions of phase space which are inaccessible otherwise. The experimental realization for cold atoms in ac-driven optical lattices is discussed.

Journal or Publication Title: Phys. Rev. E
Volume: 97
Number: 5
Divisions: 05 Department of Physics
05 Department of Physics > Institute for condensed matter physics
Date Deposited: 27 May 2019 13:08
DOI: 10.1103/PhysRevE.97.050202
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