Preprint

FZJ-2024-00756

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Emulating moir\'e materials with quasiperiodic circuit quantum electrodynamics

Herrig, T. (Corresponding author)FZJ* ; Koliofoti, C.FZJ* ; Pixley, J. H. ; König, E. J. ; Riwar, R.-P.FZJ*

2023
arXiv

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Please use a persistent id in citations: doi:10.34734/FZJ-2024-00756

Report No.: arXiv:2310.15103

Abstract: Topological bandstructures interfering with moir\'e superstructures give rise to a plethora of emergent phenomena, which are pivotal for correlated insulating and superconducting states of twisttronics materials. While quasiperiodicity was up to now a notion mostly reserved for solid-state materials and cold atoms, we here demonstrate the capacity of conventional superconducting circuits to emulate moir\'e physics in charge space. With two examples, we show that Hofstadter's butterfly and the magic-angle effect, are directly visible in spectroscopic transport measurements. Importantly, these features survive in the presence of harmonic trapping potentials due to parasitic linear capacitances. Our proposed platform benefits from unprecedented tuning capabilities, and opens the door to probe incommensurate physics in virtually any spatial dimension.

Keyword(s): Mesoscale and Nanoscale Physics (cond-mat.mes-hall) ; Superconductivity (cond-mat.supr-con) ; Quantum Physics (quant-ph) ; FOS: Physical sciences

Note: 11 pages, 5 figures

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Contributing Institute(s):

1. Theoretische Nanoelektronik (PGI-2)

Research Program(s):

1. 5222 - Exploratory Qubits (POF4-522) (POF4-522)

Appears in the scientific report 2023

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