Bifunctional superconducting cell as flux qubit and neuron

Submitting author affiliation:
Lomonosov Moscow State University, Moscow, Russian Federation

Beilstein Arch. 2023, 202336.

Published 01 Sep 2023

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Josephson digital or analog ancillary circuits are an essential part of a large number of modern quantum processors. The natural candidate for the basis of tuning, coupling, and neromorphic co-processing elements for processors based on flux qubits is the adiabatic (reversible) superconducting logic cell. Using the simplest implementation of such a cell as an example, we have investigated the conditions under which it can optionally operate as an auxiliary qubit while maintaining its ``classical'' neural functionality. The performance and temperature regime estimates obtained confirm the possibility of practical use of a single-contact inductively shunted interferometer in a quantum mode in adjustment circuits for q-processors.

Keywords: superconducting quantum computers; flux qubit; adiabatic logic cell; superconducting quantum interferometer; quantum parametron; quantum neuron; Josephson junction

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Pashin, D. S.; Pikunov, P. V.; Bastrakova, M. V.; Schegolev, A. E.; Klenov, N. V.; Soloviev, I. I. Beilstein Arch. 2023, 202336. doi:10.3762/bxiv.2023.36.v1

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