Control and readout of a transmon using a compact superconducting resonator

We demonstrate control and readout of a superconducting artificial atom based on a transmon qubit using a compact lumped-element resonator. The resonator consists of a parallel-plate capacitor (PPC) with a wire geometric inductor. The footprint of the resonators is about 200 {\mu}m by 200 {\mu}m, wh...

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Bibliographic Details
Published in:arXiv.org 2024-03
Main Authors: Zotova, Julia, Sanduleanu, Shtefan, Fedorov, Gleb, Wang, Rui, Jaw Shen Tsai, Astafiev, Oleg
Format: Article
Language:English
Subjects:
Coplanar waveguides
Inductors
Quantum dots
Qubits (quantum computing)
Resonators
Superconductivity
Online Access:Get full text
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Summary:We demonstrate control and readout of a superconducting artificial atom based on a transmon qubit using a compact lumped-element resonator. The resonator consists of a parallel-plate capacitor (PPC) with a wire geometric inductor. The footprint of the resonators is about 200 {\mu}m by 200 {\mu}m, which is similar to the standard transmon size and one or two orders of magnitude more compact in the occupied area comparing to coplanar waveguide resonators. We observe coherent Rabi oscillations and obtain time-domain properties of the transmon. The work opens a door to miniaturize essential components of superconducting circuits and to further scaling up quantum systems with superconducting transmons.
ISSN:2331-8422
DOI:10.48550/arxiv.2312.15753