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Topological protection of multiparticle dissipative transport

Author

Listed:
  • Johannes Loehr

    (Experimentalphysik, Institutes of Physics and Mathematics, Universität Bayreuth, Universitätsstraβe 30)

  • Michael Loenne

    (Mathematik, Institutes of Physics and Mathematics, Universität Bayreuth)

  • Adrian Ernst

    (Theoretische Physik, Institutes of Physics and Mathematics, Universität Bayreuth)

  • Daniel de las Heras

    (Theoretische Physik, Institutes of Physics and Mathematics, Universität Bayreuth)

  • Thomas M. Fischer

    (Experimentalphysik, Institutes of Physics and Mathematics, Universität Bayreuth, Universitätsstraβe 30)

Abstract

Topological protection allows robust transport of localized phenomena such as quantum information, solitons and dislocations. The transport can be either dissipative or non-dissipative. Here, we experimentally demonstrate and theoretically explain the topologically protected dissipative motion of colloidal particles above a periodic hexagonal magnetic pattern. By driving the system with periodic modulation loops of an external and spatially homogeneous magnetic field, we achieve total control over the motion of diamagnetic and paramagnetic colloids. We can transport simultaneously and independently each type of colloid along any of the six crystallographic directions of the pattern via adiabatic or deterministic ratchet motion. Both types of motion are topologically protected. As an application, we implement an automatic topologically protected quality control of a chemical reaction between functionalized colloids. Our results are relevant to other systems with the same symmetry.

Suggested Citation

  • Johannes Loehr & Michael Loenne & Adrian Ernst & Daniel de las Heras & Thomas M. Fischer, 2016. "Topological protection of multiparticle dissipative transport," Nature Communications, Nature, vol. 7(1), pages 1-10, September.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11745
    DOI: 10.1038/ncomms11745
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    Cited by:

    1. Nico C. X. Stuhlmüller & Farzaneh Farrokhzad & Piotr Kuświk & Feliks Stobiecki & Maciej Urbaniak & Sapida Akhundzada & Arno Ehresmann & Thomas M. Fischer & Daniel de las Heras, 2023. "Simultaneous and independent topological control of identical microparticles in non-periodic energy landscapes," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    2. Jonas Elschner & Farzaneh Farrokhzad & Piotr Kuświk & Maciej Urbaniak & Feliks Stobiecki & Sapida Akhundzada & Arno Ehresmann & Daniel de las Heras & Thomas M. Fischer, 2024. "Topologically controlled synthesis of active colloidal bipeds," Nature Communications, Nature, vol. 15(1), pages 1-12, December.

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