A cryogenic CMOS chip for generating control signals for multiple qubits

Pauka, Sebastian; Das, Kushal; Kalra, Rachpon; Moini, Alireza; Yang, Yuanyuan; Trainer, Matthew; Bousquet, A.; Cantaloube, Chris; Dick, Neil; Gardner, G. C.; Manfra, Michael J.; Reilly, David

doi:10.1038/s41928-020-00528-y

Cited by 141 publications

(73 citation statements)

References 32 publications

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“…Advanced lithography supports the fabrication of both control electronics and qubits in silicon using technology compatible with complementary metal oxide semiconductors (CMOS) 2 . When the electronics are designed to operate at cryogenic temperatures, they can ultimately be integrated with the qubits on the same die or package, overcoming the 'wiring bottleneck' [3][4][5][6] . Here we report a cryogenic CMOS control chip operating at 3 kelvin, which outputs tailored microwave bursts to drive silicon quantum bits cooled to 20 millikelvin.…”

Section: Green Open Access Added To Tu Delft Institutional Repositorymentioning

confidence: 99%

“…A promising path forward is to bring the control electronics close to the quantum chip, at cryogenic temperatures. Although important steps in this direction have been taken 4,5,[12][13][14][15][16][17][18][19] , high-fidelity multi-qubit control and a universal gate set remain to be demonstrated using cryogenic controllers. A central challenge is that the power dissipation of the control electronics easily surpasses the typical cooling power of 10 μW available at 20 mK (refs.…”

Section: Green Open Access Added To Tu Delft Institutional Repositorymentioning

confidence: 99%

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CMOS-based cryogenic control of silicon quantum circuits

Xue

Patra

Dijk

et al. 2021

Nature

177

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Section: Green Open Access Added To Tu Delft Institutional Repositorymentioning

confidence: 99%

Section: Green Open Access Added To Tu Delft Institutional Repositorymentioning

confidence: 99%

CMOS-based cryogenic control of silicon quantum circuits

Xue

Patra

Dijk

et al. 2021

Nature

177

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“…Finally, we give a brief introduction of ESR and EDSR, use rapid adiabatic passage to calibrate the resonance frequency of the spin qubit, and show the result of the Rabi oscillation. For future directions, researchers may be interested in hybrid qubits coupling [33], hot qubits [34,35], cryogenic control [69,70], foundry-fabrication [71,72], high fidelity readouts [73,74], and qubit number expansion [75].…”

Section: Discussionmentioning

confidence: 99%

An Operation Guide of Si-MOS Quantum Dots for Spin Qubits

et al. 2021

Nanomaterials

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In the last 20 years, silicon quantum dots have received considerable attention from academic and industrial communities for research on readout, manipulation, storage, near-neighbor and long-range coupling of spin qubits. In this paper, we introduce how to realize a single spin qubit from Si-MOS quantum dots. First, we introduce the structure of a typical Si-MOS quantum dot and the experimental setup. Then, we show the basic properties of the quantum dot, including charge stability diagram, orbital state, valley state, lever arm, electron temperature, tunneling rate and spin lifetime. After that, we introduce the two most commonly used methods for spin-to-charge conversion, i.e., Elzerman readout and Pauli spin blockade readout. Finally, we discuss the details of how to find the resonance frequency of spin qubits and show the result of coherent manipulation, i.e., Rabi oscillation. The above processes constitute an operation guide for helping the followers enter the field of spin qubits in Si-MOS quantum dots.

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“…It indicates that the efficient localization and detection of microwave field at the nanoscale is highly required for developing a practical quantum information device. Furthermore, the wireless qubit manipulation with a compact and scalable system will decrease the power consumption and reduce the heat load in a cryostat 24 , 25 . However, directly pumping the qubit from far-field is usually inefficient 26 .…”

Section: Introductionmentioning

confidence: 99%

Focusing the electromagnetic field to 10−6λ for ultra-high enhancement of field-matter interaction

et al. 2021

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Focusing electromagnetic field to enhance the interaction with matter has been promoting researches and applications of nano electronics and photonics. Usually, the evanescent-wave coupling is adopted in various nano structures and materials to confine the electromagnetic field into a subwavelength space. Here, based on the direct coupling with confined electron oscillations in a nanowire, we demonstrate a tight localization of microwave field down to 10−6λ. A hybrid nanowire-bowtie antenna is further designed to focus the free-space microwave to this deep-subwavelength space. Detected by the nitrogen vacancy center in diamond, the field intensity and microwave-spin interaction strength are enhanced by 2.0 × 108 and 1.4 × 104 times, respectively. Such a high concentration of microwave field will further promote integrated quantum information processing, sensing and microwave photonics in a nanoscale system.

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A cryogenic CMOS chip for generating control signals for multiple qubits

Cited by 141 publications

References 32 publications

CMOS-based cryogenic control of silicon quantum circuits

CMOS-based cryogenic control of silicon quantum circuits

An Operation Guide of Si-MOS Quantum Dots for Spin Qubits

Focusing the electromagnetic field to 10−6λ for ultra-high enhancement of field-matter interaction

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