Hiroshi Shimada

University of Electro-Communications — Japan

Physics and Astronomy · Physical Sciences

20h-index1.9kcitations189works0.42yr avg
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Research Topics

Quantum and electron transport phenomena(75), Physics of Superconductivity and Magnetism(47), Semiconductor Quantum Structures and Devices(25), Semiconductor materials and devices(24), Molecular Junctions and Nanostructures(22)

Publications189 total

Bias-dependent relaxation rates in super-radiant and sub-radiant states of strongly coupled transmons
2025
Design of an RSFQ All-Digital Phase Locked Loop with a Time-to-Digital Converter
Journal of Physics Conference Series·2025Open Access
Lateral phonon propagation between superconducting devices on a Si/SiO2 substrate
Journal of Applied Physics·2025Open Access
Information processing capabilities of two parallel gold-nanoparticle reservoirs dependent on operation temperatures
Japanese Journal of Applied Physics·2025· 1 cited
Operation of RSFQ Hardware Random Number Generator Comprising Two Josephson Oscillators
IEICE Transactions on Electronics·2024Open Access
Physical reservoir application of random network of gold nanoparticles fabricated by multi-step immersion in gold colloidal solution
Japanese Journal of Applied Physics·2024· 2 cited
Asymmetry of the Breakdown near Hot Spots in the Quantum Hall Regime in a Specially Shaped GaAs/AlGaAs Sample
Journal of the Physical Society of Japan·2024
Nonlinear signal conversion in gold nanoparticle random array for physical reservoir applications
Japanese Journal of Applied Physics·2023· 2 citedOpen Access
Random Number Generation Utilizing Timing Jitters of Single-Flux-Quantum Propagation
2023
Evaluation of True Random Number Sequences Generated by Utilizing Timing Jitters in Superconducting Integrated Circuits
Journal of Physics Conference Series·2023· 1 citedOpen Access
Operation of a 4-bit RSFQ digital-to-analog converter based on a binary split-confluence configuration
Journal of Physics Conference Series·2022· 2 citedOpen Access
100GHz operation of a 4-bit single-flux-quantum pulse-frequency modulator designed for bipolar D/A conversion
IEICE Electronics Express·2022· 1 citedOpen Access
Sensitive phonon detection using a single Cooper-pair transistor
Applied Physics Express·2022· 4 cited
Evaluation of a True Random Number Generator Utilizing Timing Jitters in RSFQ Logic Circuits
IEICE Transactions on Electronics·2022· 5 citedOpen Access
Detection of phonons with a single Cooper-pair transistor
IEICE Technical Report; IEICE Tech. Rep.·2021· 1 cited
Scalability of supercurrent modulable with single Cooper-pair transistors connected in parallel
Japanese Journal of Applied Physics·2021· 1 cited
Enhanced operation frequencies of bipolar double-flux-quantum amplifiers fabricated using 10 kA cm <sup>−2</sup> Nb/AlO <i> <sub>x</sub> </i> /Nb integration process
Japanese Journal of Applied Physics·2021· 5 cited
Ferromagnetic Single-Electron Devices Comprising Co Nanoparticles Assembled by Use of On-Chip Electromagnets
IEICE Technical Report; IEICE Tech. Rep.·2021
Nanoscale Tunnel Junctions and Metallic Single-Electron Transistors via Shadow Evaporation and In Situ Atomic Layer Deposition of Tunnel Barriers
ACS Applied Nano Materials·2021· 3 cited
Electrical Characteristics of Single-Electron Transistors Made by Dielectrophoresis of Gold Nanoparticles with Two Different Diameters
The Japan Society of Applied Physics·2021
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Frequent Co-authors

Yoshinao Mizugaki(11), Youiti Ootuka(10), Masaaki Tanaka(6), Keiji Ono(6), Masaaki Maezawa(6), Taizō Masumi(5), Norihiro Suzuki(5), Masataka Moriya(5), Tatau Nishinaga(4), Keiji Ono(3), Shun-ichi Kobayashi(3), Kuniya Tanaka(3), Masaru Miura(3), Takaharu Takeshita(3), M. Sakata(3), T. Koga(3), K. Itabashi(3), Keisuke Mizutani(3), Hidetoshi Minami(3), Takashi Hayashi(2)