Progress toward superconductor electronics fabrication process with planarized NbN and NbN/Nb layers

SK Tolpygo, JL Mallek, V Bolkhovsky… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
In order to increase circuit density of superconductor digital and neuromorphic circuits by
10× and reach integration scale of 10 8 Josephson junctions (JJs) per chip, we developed a …

Self-and mutual inductance of NbN and bilayer NbN/Nb inductors in a planarized fabrication process with Nb ground planes

SK Tolpygo, EB Golden, TJ Weir… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
We present measurements of the self-and mutual inductance of NbN and NbN/Nb bilayer
inductors (microstrips, striplines, serpentines, etc.) with Nb ground plane (s) fabricated in an …

Single-flux-quantum circuits utilizing self-shunted NbN/TaN/NbN Josephson junctions grown on silicon substrates

Y Zhong, L Zhang, J Xie, Z Zheng, M Lu… - Superconductor …, 2024 - iopscience.iop.org
We report on the electrical properties of NbN/TaN/NbN Josephson junctions grown on
thermally oxidized silicon substrates, along with the design and fabrication of …

Experimental Study of the Transfer Function of a Superconducting Gauss Neuron Prototype

AS Ionin, LN Karelina, NS Shuravin, MS Sidel'nikov… - JETP Letters, 2023 - Springer
The transfer function of a shunted two-junction interferometer, which was previously
proposed as a basic element of superconducting neural networks based on radial basis …

Experimental Evaluation of Josephson Balanced Comparators Towards 100 GHz RSFQ Circuits

TV Filippov, A Sahu, DE Kirichenko… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
The Josephson balanced comparator (BC) is a decision-making element and a key building
block for all RSFQ logic cells. The comparator is usually characterized by two parameters …

Short-and Long-Term State Switching in the Superconducting Niobium Neuron Plasticity

F Feldhoff, H Toepfer - IEEE Transactions on Applied …, 2024 - ieeexplore.ieee.org
Bio-inspired algorithms and architectures are considered superior to classical architectures
for certain applications. An important aspect with regard to the function of the human …

Contemporary implementations of spiking bio-inspired neural networks

AE Schegolev, MV Bastrakova, MA Sergeev… - arXiv preprint arXiv …, 2024 - arxiv.org
The extensive development of the field of spiking neural networks has led to many areas of
research that have a direct impact on people's lives. As the most bio-similar of all neural …

Development of a Neuromorphic Network Using BioSFQ Circuits

EB Golden, VK Semenov, SK Tolpygo - arXiv preprint arXiv:2412.16804, 2024 - arxiv.org
Superconductor electronics (SCE) appear promising for low energy applications. However,
the achieved and projected circuit densities are insufficient for direct competition with CMOS …

High-temperature superconductor quantum flux parametron for energy efficient logic

H Cai, JC LeFebvre, H Li, EY Cho, N Yoshikawa… - Applied Physics …, 2024 - pubs.aip.org
We report the fabrication and measurement of quantum flux parametron logic from high-
transition-temperature Josephson junctions operating at 25 K, above the temperature of …

Экспериментальное исследование передаточной функции прототипа сверхпроводящего гаусс-нейрона

АС Ионин, ЛН Карелина, НС Шуравин… - Письма в Журнал …, 2023 - mathnet.ru
В работе представлено первое измерение передаточной функции шунтированного
двухконтактного интерферометра, ранее предложенного в качестве базового …