Inducing transport in a dissipation-free lattice with super Bloch oscillations

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Haller, Elmar and Hart, R. and Mark, M.J. and Danzl, J.G. and Reichsoellner, L. and Naegerl, H.-C. (2010) Inducing transport in a dissipation-free lattice with super Bloch oscillations. Physical Review Letters, 104 (20). 200403. ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.104.200403)

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Abstract

Particles in a perfect lattice potential perform Bloch oscillations when subject to a constant force, leading to localization and preventing conductivity. For a weakly interacting Bose-Einstein condensate of Cs atoms, we observe giant center-of-mass oscillations in position space with a displacement across hundreds of lattice sites when we add a periodic modulation to the force near the Bloch frequency. We study the dependence of these "super" Bloch oscillations on lattice depth, modulation amplitude, and modulation frequency and show that they provide a means to induce linear transport in a dissipation-free lattice.

ORCID iDs

Haller, Elmar ORCID logoORCID: https://orcid.org/0000-0002-7951-1721, Hart, R., Mark, M.J., Danzl, J.G., Reichsoellner, L. and Naegerl, H.-C.;
  • Item type:Article
    ID code:43334
    Dates:
    Date
    Event
    21 May 2010
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:26 Mar 2013 10:42
    Last modified:12 Dec 2024 02:47
    URI:https://strathprints.strath.ac.uk/id/eprint/43334
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