A bifunctional superconducting cell as flux qubit and neuron

• Published in: Beilstein journal of nanotechnology Vol. 14; no. 1; pp. 1116 - 1126
• Main Authors: Pashin, Dmitrii S, Pikunov, Pavel V, Bastrakova, Marina V, Schegolev, Andrey E, Klenov, Nikolay V, Soloviev, Igor I
• Format: Journal Article
• Language: English
• Published: Frankfurt am Main Beilstein-Institut zur Föerderung der Chemischen Wissenschaften 21-11-2023; Beilstein-Institut
• Subjects: adiabatic logic cell; Analog circuits; Approximation; Circuits; Energy; flux qubit; Full Research Paper; josephson junctio; Nanoscience; Nanotechnology; Processors; Quantum computing; quantum neuron; quantum parametron; Qubits (quantum computing); superconducting quantum computers; superconducting quantum interferometer; Superconductivity
• ISSN: 2190-4286; 2190-4286
• DOI: 10.3762/bjnano.14.92

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.