Design and implementation of odd electrical circuits

ORAL

Abstract

Chiral symmetry-breaking in elastic media gives rise to rich non-equilibrium behaviors, but controllable experimental realizations of such phenomena remain scarce. Building on recent advances in constructing electrical analogs of non-Hermitian solid state systems, we design, build and analyze scalable odd electrical circuits (OECs) that share hallmark features of odd elastic materials and metamaterials. We present analytical and experimental results demonstrating signal amplification properties of OECs and how selective actuation results in collective mode excitations akin to those recently observed in living chiral crystals.

*This research received support through Schmidt Sciences, LLC, a Sloan Foundation Grant (G-2021-16758), and the MIT MathWorks Professorship Fund.

Publication: "Odd electrical circuits", preprint 2025 https://arxiv.org/abs/2503.14383
Plan to submit a combined theory/experiment paper before next year

Presenters

  • Harry Walden

    • Massachusetts Institute of Technology

Authors

  • Harry Walden

    • Massachusetts Institute of Technology
  • Alexander Stegmaier

    • Julius-Maximilians University of Wuerzburg
  • Maximilian Hofer

    • Julius-Maximilians University of Wuerzburg
  • Christine Barko

    • Julius-Maximilians University of Wuerzburg
  • Tobias Kiessling

    • Julius-Maximilians University of Wuerzburg
  • Jorn Dunkel

    • Massachusetts Institute of Technology
  • Alexander Mietke

    • University of Oxford