A Cryogenic ${1.08mW}$/Qubit Fully-Integrated 4-Channel Frequency-Division-Multiplexing Transmon Qubit State Readout ASIC in 28nm Bulk CMOS

In this paper, we propose a cryogenic fully-integrated 4channel Frequency-Division-Multiplexing (FDM) transmon qubit state readout ASIC, with a power consumption of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$4.32 \text{mW}(1.08 \text{mW} /$</tex> qubit). To the author's knowledge, it achieves the lowest power consumption compared to other qubit state readout receiver. By adopting ultra-narrow band zero-IF topology aided by 18-tap Analog Finite Impulse Response low pass filter (AFIR-LPF) with 40 dB stop-band rejection, the chip is able to detect four qubits simultaneously in our test system and achieves at least 92 % readout fidelity in four qubits FDM readout measurement.

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Published
2025-06-08
DOI
https://doi.org/10.23919/vlsitechnologyandcir65189.2025.11074904
Citations
1
Primary Topic
Quantum Computing Algorithms and Architecture
Type
article
Field-Weighted Citation Impact
2.48

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article

A Cryogenic ${1.08mW}$/Qubit Fully-Integrated 4-Channel Frequency-Division-Multiplexing Transmon Qubit State Readout ASIC in 28nm Bulk CMOS

Wenhui Huang, Yuanjin Zheng, Xiaoqian Liu, Hanjun Jiang et al.
1 citations
Quantum Computing Algorithms and Architecture
2.48
article

A Cryogenic ${1.08mW}$/Qubit Fully-Integrated 4-Channel Frequency-Division-Multiplexing Transmon Qubit State Readout ASIC in 28nm Bulk CMOS

Wenhui Huang, Yuanjin Zheng, Xiaoqian Liu, Hanjun Jiang, Yanshu Guo, Zhihua Wang, Tian Tian, Guo Wei, Tiefu Li, Qichun Liu, Jia Wen
article en
1 citations

Abstract

In this paper, we propose a cryogenic fully-integrated 4channel Frequency-Division-Multiplexing (FDM) transmon qubit state readout ASIC, with a power consumption of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$4.32 \text{mW}(1.08 \text{mW} /$</tex> qubit). To the author's knowledge, it achieves the lowest power consumption compared to other qubit state readout receiver. By adopting ultra-narrow band zero-IF topology aided by 18-tap Analog Finite Impulse Response low pass filter (AFIR-LPF) with 40 dB stop-band rejection, the chip is able to detect four qubits simultaneously in our test system and achieves at least 92 % readout fidelity in four qubits FDM readout measurement.

Nanyang Technological University (SG), Beijing Academy of Quantum Information Sciences (CN), Tsinghua University (CN)
National Key Research and Development Program of China
Openalex Percentile: Top 9%
Quantum Computing Algorithms and Architecture
2.48
DOISourceOpenAlex
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A Cryogenic ${1.08mW}$/Qubit Fully-Integrated 4-Channel Frequency-Division-Multiplexing Transmon Qubit State Readout ASIC in 28nm Bulk CMOS — Wenhui Huang, Yuanjin Zheng, et al. · (2025) | TGRS Research Map | TGRS