TY - JOUR
T1 - Realizing efficient topological temporal pumping in electrical circuits
AU - Stegmaier, Alexander
AU - Brand, Hauke
AU - Imhof, Stefan
AU - Fritzsche, Alexander
AU - Helbig, Tobias
AU - Hofmann, Tobias
AU - Boettcher, Igor
AU - Greiter, Martin
AU - Lee, Ching Hua
AU - Bahl, Gaurav
AU - Szameit, Alexander
AU - Kießling, Tobias
AU - Thomale, Ronny
AU - Upreti, Lavi K.
N1 - The work is funded by Deutsche Forschungsgemeinschaft Project No. 258499086 SFB 1170 and through W\u00FCrzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter Project No. 390858490 EXC 2147. T.H. was supported by a Ph.D. scholarship of the German Academic Scholarship Foundation. I.B. acknowledges support from the University of Alberta startup fund UOFAB Startup Boettcher and Natural Sciences and Engineering Research Council of Canada Discovery Grants No. RGPIN-2021-02534 and No. DGECR2021-00043. L.K.U. acknowledges support from SNF Grant No. 13947622-FP476/22Zilberberg.
PY - 2024/4
Y1 - 2024/4
N2 - 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 nonadiabatic effects. In this paper, 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.
AB - 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 nonadiabatic effects. In this paper, 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.
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U2 - 10.1103/PhysRevResearch.6.023010
DO - 10.1103/PhysRevResearch.6.023010
M3 - Article
AN - SCOPUS:85189556107
SN - 2643-1564
VL - 6
JO - Physical Review Research
JF - Physical Review Research
IS - 2
M1 - 023010
ER -