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Title: Dissipationless directed transport in rocked single-band quantum dynamics

Abstract

Using matter waves that are trapped in a deep optical lattice, dissipationless directed transport is demonstrated to occur if the single-band quantum dynamics is periodically tilted on one half of the lattice by a monochromatic field. Most importantly, the directed transport can exist for almost all system parameters, even after averaged over a broad range of single-band initial states. The directed transport is theoretically explained within ac-scattering theory. Total reflection phenomena associated with the matter waves traveling from a tilting-free region to a tilted region are emphasized. The results are of relevance to ultracold physics and solid-state physics, and may lead to powerful means of selective, coherent, and directed transport of cold particles in optical lattices.

Authors:
;  [1];  [2];  [3]
  1. Department of Physics and Center for Computational Science and Engineering, National University of Singapore, 117542 (Singapore)
  2. Theoretische Physik I, Institut fuer Physik, Universitaet Augsburg, D-86135 Augsburg (Germany)
  3. (Singapore)
Publication Date:
OSTI Identifier:
20982371
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevA.75.033602; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; MONOCHROMATIC RADIATION; OPTICAL MODELS; PERIODICITY; QUANTUM MECHANICS; REFLECTION; SCATTERING; SOLID STATE PHYSICS; TEMPERATURE RANGE 0000-0013 K; TRAPPING

Citation Formats

Gong, Jiangbin, Poletti, Dario, Hanggi, Peter, and Department of Physics and Center for Computational Science and Engineering, National University of Singapore, 117542. Dissipationless directed transport in rocked single-band quantum dynamics. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.033602.
Gong, Jiangbin, Poletti, Dario, Hanggi, Peter, & Department of Physics and Center for Computational Science and Engineering, National University of Singapore, 117542. Dissipationless directed transport in rocked single-band quantum dynamics. United States. doi:10.1103/PHYSREVA.75.033602.
Gong, Jiangbin, Poletti, Dario, Hanggi, Peter, and Department of Physics and Center for Computational Science and Engineering, National University of Singapore, 117542. Thu . "Dissipationless directed transport in rocked single-band quantum dynamics". United States. doi:10.1103/PHYSREVA.75.033602.
@article{osti_20982371,
title = {Dissipationless directed transport in rocked single-band quantum dynamics},
author = {Gong, Jiangbin and Poletti, Dario and Hanggi, Peter and Department of Physics and Center for Computational Science and Engineering, National University of Singapore, 117542},
abstractNote = {Using matter waves that are trapped in a deep optical lattice, dissipationless directed transport is demonstrated to occur if the single-band quantum dynamics is periodically tilted on one half of the lattice by a monochromatic field. Most importantly, the directed transport can exist for almost all system parameters, even after averaged over a broad range of single-band initial states. The directed transport is theoretically explained within ac-scattering theory. Total reflection phenomena associated with the matter waves traveling from a tilting-free region to a tilted region are emphasized. The results are of relevance to ultracold physics and solid-state physics, and may lead to powerful means of selective, coherent, and directed transport of cold particles in optical lattices.},
doi = {10.1103/PHYSREVA.75.033602},
journal = {Physical Review. A},
number = 3,
volume = 75,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}