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Optimally designed quantum transport across disordered networks.

Mattia Walschaers1, Jorge Fernandez-de-Cossio Diaz, Roberto Mulet

  • 1Physikalisches Institut, Albert-Ludwigs-Universitat Freiburg, Hermann-Herder-Strasse 3, D-79104 Freiburg, Germany and Instituut voor Theoretische Fysica, KU Leuven, Celestijnenlaan 200D, B-3001 Heverlee, Belgium.

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Summary
This summary is machine-generated.

We discovered a mechanism for efficient quantum transport in disordered 3D networks. This quantum transport relies on specific network properties and can be controlled by tuning coarse-grained quantities.

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Area of Science:

  • Quantum physics
  • Condensed matter physics
  • Biophysics

Background:

  • Quantum transport is crucial for many physical and biological processes.
  • Disordered systems present challenges for efficient transport.
  • Understanding quantum transport in 3D networks is key for technological and biological applications.

Purpose of the Study:

  • To establish a general mechanism for highly efficient quantum transport.
  • To explore the role of disorder, centrosymmetry, and spectral structure in quantum transport.
  • To identify potential biological systems that utilize this transport mechanism.

Main Methods:

  • Theoretical analysis of quantum transport in finite, disordered 3D networks.
  • Investigation of the interplay between disorder, centrosymmetry, and spectral properties.
  • Identification of control parameters based on coarse-grained quantities.

Main Results:

  • A general mechanism for highly efficient quantum transport was established.
  • The mechanism relies on the interplay of disorder with centrosymmetry and a dominant doublet spectral structure.
  • Efficient transport can be controlled by tuning coarse-grained quantities.

Conclusions:

  • The developed mechanism provides a pathway for efficient quantum transport in disordered systems.
  • Photosynthetic light harvesting complexes are proposed as potential biological examples of this design principle.
  • This work offers insights into the fundamental principles governing quantum transport in complex networks.