Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session N72: Semiconductor Qubits: Spin Qubit Measurement II
11:30 AM–2:18 PM,
Wednesday, March 8, 2023
Room: Room 406
Sponsoring
Unit:
DQI
Chair: Sophie Hermans, California Institute of Technology
Abstract: N72.00004 : Broadband parametric amplification for multiplexed SiMOS spin qubit readout*
12:06 PM–12:18 PM
Presenter:
Victor Elhomsy
(Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel)
Authors:
Victor Elhomsy
(Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel)
David J Niegemann
(Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel)
Luca Planat
(Silent Waves)
Emmanuel Chanrion
(Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel)
Martin Nurizzo
(Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel)
Baptiste Jadot
(Univ. Grenoble Alpes, CEA, Leti, Grenoble, France)
Vivien Thiney
(Univ. Grenoble Alpes, CEA, Leti, Grenoble, France)
Renan Lethiecq
(Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel)
Bernhard Klemt
(Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel)
Matthieu C Dartiailh
(Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel)
Pierre A Mortemousque
(Univ. Grenoble Alpes, CEA, Leti, Grenoble, France)
Benoit Bertrand
(Univ. Grenoble Alpes, CEA, Leti, Grenoble, France)
Heimanu Niebojewski
(Univ. Grenoble Alpes, CEA, Leti, Grenoble, France)
Maud Vinet
(Univ. Grenoble Alpes, CEA, Leti, Grenoble, France)
Nicolas Roch
(Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel)
Tristan Meunier
(Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel)
Matias Urdampilleta
(Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel)
Gate-based radio-frequency reflectometry embodies a readout method that doesn't need additional elements to be built, outside of the transistor gates themselves. In addition, superconducting parametric amplification gives a way to significantly enhance the readout signal-to-noise ratio by reducing the noise below typical HEMT amplifiers, of around 4K noise temperature [3].
In this work, we demonstrate a 3GHz gate-based reflectometry readout of electron charge states in SiMOS multi-gate devices, enhanced with a travelling-wave superconducting parametric amplifier (TWPA) [4]. The broad 2GHz bandwidth combined with close to 12dB gain of the amplifier offers time-multiplexing interdot signal readout near the standard quantum limit of noise. In addition, the single-junction nature of the aluminum superconducting amplifier chain renders it insensitive to external magnetic field at typical spin qubit working values, up until we reach Al critical field at the position of the amplifier.
[2] Maurand, R., Jehl, X., Kotekar-Patil, D., Corna, A., Bohuslavskyi, H., Laviéville, R., ... & De Franceschi, S. (2016). A CMOS silicon spin qubit. Nature communications, 7(1), 1-6.
[3] Vigneau, F., Fedele, F., Chatterjee, A., Reilly, D., Kuemmeth, F., Gonzalez-Zalba, F., ... & Ares, N. (2022). Probing quantum devices with radio-frequency reflectometry. arXiv preprint arXiv:2202.10516.
[4] Planat, L., Ranadive, A., Dassonneville, R., Martínez, J. P., Léger, S., Naud, C., ... & Roch, N. (2020). Photonic-crystal Josephson traveling-wave parametric amplifier. Physical Review X, 10(2), 021021.
*The device fabrication is funded through the Mosquito project (grant agreement no. 688539). This work is supported by the ANR (CRYMCO and CMOSQSPIN projects), and the QCube (810504) and QLSI (951852) projects.
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