Realizing efficient topological temporal pumping in electrical circuits
Other Condensed Matter
2023-06-28 v1 Mesoscale and Nanoscale Physics
Applied Physics
Abstract
Quantized adiabatic transport can occur when a system is slowly modulated over time. In most realizations however, the efficiency of such transport is reduced by unwanted dissipation, back-scattering, and non-adiabatic effects. In this work, we realize a topological adiabatic pump in an electrical circuit network that supports remarkably stable and long-lasting pumping of a voltage signal. We further characterize the topology of our system by deducing the Chern number from the measured edge band structure. To achieve this, the experimental setup makes use of active circuit elements that act as time-variable voltage-controlled inductors.
Cite
@article{arxiv.2306.15434,
title = {Realizing efficient topological temporal pumping in electrical circuits},
author = {Alexander Stegmaier and Hauke Brand and Stefan Imhof and Alexander Fritzsche and Tobias Helbig and Tobias Hofmann and Igor Boettcher and Martin Greiter and Ching Hua Lee and Gaurav Bahl and Alexander Szameit and Tobias Kießling and Ronny Thomale and Lavi K. Upreti},
journal= {arXiv preprint arXiv:2306.15434},
year = {2023}
}
Comments
main (5 pages, 3 figures) plus supplement (8 pages, 4 figures)