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This article is cited in 1 scientific paper (total in 1 paper)
QUANTUM INFORMATION SCIENCE
Optimization of adiabatic superconducting logic cells by using $\pi$ Josephson junctions
G. S. Khismatullinab, N. V. Klenovcd, I. I. Solovievac a Skobeltsyn Institute of Nuclear Physics, Moscow State University, Moscow, 119991 Russia
b Russian Quantum Center, Skolkovo, Moscow, 121205 Russia
c National University of Science and Technology MISiS, Moscow, 119049 Russia
d Faculty of Physics, Moscow State University, Moscow, 119991 Russia
Abstract:
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 ($\pi$ 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 $\pi$ 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.
Received: 28.04.2023 Revised: 27.06.2023 Accepted: 28.06.2023
Citation:
G. S. Khismatullin, N. V. Klenov, I. I. Soloviev, “Optimization of adiabatic superconducting logic cells by using $\pi$ Josephson junctions”, Pis'ma v Zh. Èksper. Teoret. Fiz., 118:3 (2023), 214–223; JETP Letters, 118:3 (2023), 220–229
Linking options:
https://www.mathnet.ru/eng/jetpl7010 https://www.mathnet.ru/eng/jetpl/v118/i3/p214
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Abstract page: | 37 | References: | 13 | First page: | 1 |
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