Cryogenic Multiplexing Control Chip for Superconducting Quantum Processor

This paper proposes a scheme and design of cryogenic multiplexing control chip (MCC) which enables one microwave cable to control many superconducting qubits.

By Huang, Geng, Wu +4Oct 14, 2026

Score████░░░░░░4.4

VerdictCompetent work. Briefs at most.

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Abstract

This paper proposes a scheme and design of cryogenic multiplexing control chip (MCC) which enables one microwave cable to control many superconducting qubits. Designed based on adjustable inductor, MCC is a non-reciprocal device which generates microwave signals between 4 and 8 GHz and constructs XY control circuit to operate qubits. The effects of filters, isolators, power splitters, qubits and load impedance on MCC are analyzed in the frequency-domain simulation. And in time-domain simulation, the response time, Gaussian pulses, single-sideband, amplitude and frequency compensation of MCC are examined. The MCC can be integrated with the superconducting qubits on the same package at 20 mK temperature stage, and output specific microwave pulses used to drive the superconducting qubits without crosstalks. The MCC can greatly reduce the number of microwave control lines and is beneficial to the development of large-scale superconducting quantum processor.

Rutian Huang, Xiao Geng, Xinyu Wu, Genting Dai, Liangliang Yang, Jianshe Liu, Wei Chen

The editor's rubric

Heuristic review

Dimension	Level	Weight	What that level means
Leverage	██░░░ 2	18%	Reusable within one subfield (a technique, dataset, or protocol a few groups will adopt).
Magnitude	██░░░ 2	20%	Solid incremental gain on a meaningful problem.
Evidence	██░░░ 2	22%	Limited: single setting, weak baselines, or an observational association presented as causal.
Novelty	██░░░ 2	22%	A new combination of known ideas.
Trajectory	██░░░ 2	10%	Some room to improve with obvious engineering.
Stakes	██░░░ 2	8%	Benefits a professional community (practitioners, clinicians, engineers).

Editor’s rationale

Heuristic triage from title and abstract text only, not a reading of the paper. Cues found: scale (scalable).

How the score was computed

rank-2026-10-07

Score████░░░░░░4.4

Score = 10 × (75% × adjusted merit / 10 + 15% × attention + 10% × freshness)

Merit: 3.4 / 10; Weighted rubric, evidence-gated.
Adjusted merit: 3.8 / 10; Shrunk toward the desk prior by editor confidence (32%).
Attention: 42%; Citations, upvotes, points, mentions.
Freshness: 90%; Half-life decay since publication.

Citations15 (reference 20, via openalex, Oct 15, 2026, 07:29 UTC)

The record

Reviewed by heuristic-v6 on Oct 15, 2026, 07:29 UTC. Paper type: empirical.
Categories: quant-ph
TOP, No.6 in the Physics edition of October 15, 2026.