Integrated multiplexed microwave readout of silicon quantum dots in a cryogenic CMOS chip

Ruffino, Andrea; Yang, Tsung-Yeh; Michniewicz, John; Peng, Yatao; Charbon, Edoardo; Gonzalez-Zalba, Miguel Fernando

doi:10.48550/arxiv.2101.08295

Cited by 6 publications

(8 citation statements)

References 47 publications

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“…IV, we demonstrate fast multiplexed dispersive gate sensing (DGS) at GHz-frequencies in a double quantum dot (DQD). This local measurement of charge transitions facilitates fast tune-up of multi-QD systems [29]. Finally, in Sec.…”

Section: Introductionmentioning

confidence: 91%

“…The data acquisition is frequency-multiplexed for both resonators such that the data in panels a and b of Fig. 4 are measured simultaneously [29,56]. This not only reduces the measurement time, but multiplexing also guarantees the measurements in Fig.…”

Section: Rapid Multiplexed Reflectometrymentioning

confidence: 99%

“…Despite these successes, however, experiments are still often supplemented with DC or low-frequency measurements to quantitatively extract the DC conductance [27]. As larger-scale devices are developed [28,29], it is interesting to direct focus to readout and tune-up schemes utilizing SHF resonators only, thus allowing a single framework for all measurements performed on a device.…”

Section: Introductionmentioning

confidence: 99%

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Rapid microwave-only characterization and readout of quantum dots using multiplexed gigahertz-frequency resonators

de Jong,

Prosko,

Waardenburg

et al. 2021

Preprint

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Superconducting resonators enable fast characterization and readout of mesoscopic quantum devices. Finding ways to perform measurements of interest on such devices using resonators only is therefore of great practical relevance. We report the experimental investigation of an InAs nanowire multi-quantum dot device by probing GHz resonators connected to the device. First, we demonstrate accurate extraction of the DC conductance from measurements of the high-frequency admittance. Because our technique does not rely on DC calibration, it could potentially obviate the need for DC measurements in semiconductor qubit devices. Second, we demonstrate multiplexed gate sensing and the detection of charge tunneling on microsecond time scales. The GHz detection of dispersive resonator shifts allows rapid acquisition of charge-stability diagrams, as well as resolving charge tunneling in the device with a signal-to-noise ratio of up to 15 in one microsecond. Our measurements show that GHz-frequency resonators may serve as a universal tool for fast tune-up and high-fidelity readout of semiconductor qubits.

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Section: Introductionmentioning

confidence: 91%

Section: Rapid Multiplexed Reflectometrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rapid microwave-only characterization and readout of quantum dots using multiplexed gigahertz-frequency resonators

de Jong,

Prosko,

Waardenburg

et al. 2021

Preprint

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“…In addition to performing pitch conversion for the qubit chip, this interposer also serves as a common substrate on which to mount other functional chips. [15][16][17][18][19][20] In this paper, we flip-chip mount two ESD chips on the interposer to protect the QD device from surges as a first step to implement peripheral cryogenic circuits on the silicon interposer. The ESD chips are connected to all device electrodes operated at DC.…”

Section: Structure Of the Interposermentioning

confidence: 99%

Cryogenic flip-chip interconnection for silicon qubit devices

Futaya,

Mizokuchi,

Taguchi

et al. 2024

Jpn. J. Appl. Phys.

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Interfacing qubits with peripheral control circuitry poses one of the major common challenges toward realization of large-scale quantum computation. Spin qubits in silicon quantum dots are particularly promising for scaling up, owing to the potential benefits from the know-how of the semiconductor industry. In this paper, we focus on the interposer technique as one of the potential solutions for the quantum-classical interface problem and report DC and RF characterization of a silicon quantum dot device mounted on an interposer. We demonstrate flip-chip interconnection with the qubit device down to 4.2 K by observing Coulomb diamonds. We furthermore propose and demonstrate a laser-cut technique to disconnect peripheral circuits no longer in need. These results may pave the way toward system-on-a-chip quantum-classical integration for future quantum processors.

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“…These include low-temperature (de)multiplexers 10,11 , analog-to-digital and digital-to-analog converters 12,13 , lownoise amplifiers 14,15 , RF oscillators 16,17 , transimpedance amplifiers 18,19 , and digital processors 20,21 . In a DRAM-like strategy 22,23 , these cryogenic components can significantly reduce the number of electrical lines running through the host cryostat, thereby limiting the associated heat load and increasing interconnect reliability. A CMOS-based cryogenic controller operating at 3K was recently reported enabling highfidelity operations on an electron-spin two-qubit system 24 .…”

mentioning

confidence: 99%

Compact gate-based read-out of multiplexed quantum devices with a cryogenic CMOS active inductor

Guevel,

Billiot,

De Franceschi

et al. 2021

Preprint

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Integrated multiplexed microwave readout of silicon quantum dots in a cryogenic CMOS chip

Cited by 6 publications

References 47 publications

Rapid microwave-only characterization and readout of quantum dots using multiplexed gigahertz-frequency resonators

Rapid microwave-only characterization and readout of quantum dots using multiplexed gigahertz-frequency resonators

Cryogenic flip-chip interconnection for silicon qubit devices

Compact gate-based read-out of multiplexed quantum devices with a cryogenic CMOS active inductor

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