Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

IEICE Technical Report; IEICE Tech. Rep.

Input sensitivity of adiabatic quantum-flux-parametron interface for readout of superconducting nanowire single photon detectors

Fumihiro China, Naoki Takeuchi, Shigehito Miki, Shigeyuki Miyajima, Masahiro Yabuno, Hirotaka Terai

Published Apr 12, 2019• 0 citations
OpenAlex

Related papers

Readout of Superconducting Nanowire Single-Photon Detectors using a High-Sensitivity AQFP Comparator

Fumihiro China, Naoki Takeuchi, Shigehito Miki +3 more

The Japan Society of Applied Physics•Jul 9, 2020•0 citations

High-sensitive readout of superconducting nanowire single-photon detectors using an AQFP comparator

Fumihiro China, Naoki Takeuchi, Shigehito Miki +3 more

IEICE Technical Report; IEICE Tech. Rep.•Nov 18, 2020•0 citations

Design and Evaluation of Signal Interface between Single Flux Quantum and Adiabatic Quantum Flux Parametron

Fumihiro China, Tatsuya Narama, Naoki Tsuji +4 more

IEICE Technical Report; IEICE Tech. Rep.•Jul 28, 2015•0 citations

Design of the Interface between Adiabatic Quantum Flux Parametron Circuits and Single Flux Quantum Circuits

Yuichi Yamazaki, Taiki Yamae, Naoki Takeuchi

The Japan Society of Applied Physics•Jul 10, 2019•0 citations

Design and Evaluation of Interface Circuit between Single Flux Quantum and Adiabatic Quantum Flux Parametron Circuits

Fumihiro China

The Japan Society of Applied Physics•Feb 6, 2015•0 citations

Cryogenic readout of superconducting nanowire single-photon detectors using high-sensitivity adiabatic quantum-flux-parametron circuits

Fumihiro China, Naoki Takeuchi, Shigehito Miki +3 more

Abstract We have been developing readout interfaces for superconducting nanowire single-photon detectors (SSPDs) using adiabatic quantum-flux-parametron (AQFP) logic. AQFP circuits operate with low power consumption, low bias currents, and high sensitivity, and thus are suitable as readout interfaces for large SSPD arrays. In this study, we develop a high-sensitivity AQFP interface, consisting of a current transformer, comparator, and rising-edge detector. We systematically investigated the current sensitivity of the AQFP interface by operating an NbTiN SSPD with the interface in a 0.1 W Gifford–McMahon cryocooler. We compared the outputs from the AQFP interface with the direct outputs from the SSPD, thereby demonstrating a sensitivity of 3.5 μ A, which is much smaller than that of the single-flux-quantum interfaces that we developed before.

Superconductor Science and Technology•Feb 18, 2021•7 citations
Abstract We have been developing readout interfaces for superconducting nanowire single-photon detectors (SSPDs) using adiabatic quantum-flux-parametron (AQFP) logic. AQFP circuits operate with low power consumption, low bias currents, and high sensitivity, and thus are suitable as readout interfaces for large SSPD arrays. In this study, we develop a high-sensitivity AQFP interface, consisting of a current transformer, comparator, and rising-edge detector. We systematically investigated the current sensitivity of the AQFP interface by operating an NbTiN SSPD with the interface in a 0.1 W Gifford–McMahon cryocooler. We compared the outputs from the AQFP interface with the direct outputs from the SSPD, thereby demonstrating a sensitivity of 3.5 μ A, which is much smaller than that of the single-flux-quantum interfaces that we developed before.