Optimization of Adiabatic Superconducting Logic Cells by Using π Josephson Junctions

Khismatullin, G.S.; Klenov, N.V.; Soloviev, I.I.

Авторы: Khismatullin G.S., Klenov N.V., Soloviev I.I.
Журнал: JETP Letters
Том: 118
Номер: 3
Год издания: 2023
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 220
Последняя страница: 229
Оригинальные версии: Оптимизация ячеек адиабатических сверхпроводниковых логических устройств за счет использования джозефсоновских π-контактов
DOI: 10.1134/S0021364023601331
Аннотация: Adiabatic superconducting logic circuits can ensure the practical implementation of operations with the energy dissipation below the Landauer limit. However, applications of the existing solutions are limited because of two contradictory requirements of a high energy efficiency and a sufficiently fast response of devices. Josephson junctions with a negative critical current (π junctions) allow one to obtain a certain form of the potential energy of superconducting circuits and, as a result, a practically required degree of control of dynamic processes in the proposed reversible logic cells. The features of the current transport and balance of Josephson phases in circuits with π junctions make it possible to improve the coupling between the parts of a reversible computer by a factor more than 2. At the same time, the continuous evolution of the state is ensured at higher critical currents and higher characteristic voltages of the main Josephson junctions of adiabatic superconducting logic cells, which allows an increase in the response rate.
Добавил в систему: Кленов Николай Викторович

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