Programmable and reprogrammable quantum circuits

By using superconducting fuses and antifuse devices in quantum circuits and utilizing laser-controlled coupling, the coherence problem of qubits was solved, enabling the programmability and reprogrammability of quantum computing devices, thus improving performance and accuracy.

CN116685983BActive Publication Date: 2026-07-21INTERNATIONAL BUSINESS MACHINE CORPORATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INTERNATIONAL BUSINESS MACHINE CORPORATION
Filing Date
2021-12-22
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In quantum computing, the qubits of multi-qubit devices exhibit coherence problems, especially faulty qubits, poor quality factors, and frequency deviations, which lead to a decrease in the performance of quantum computers as they scale.

Method used

By employing superconducting fuses and superconducting antifuses to alter the coupling between quantum computing elements, and controlling the opening and closing of these devices via laser output, the quantum circuits can be made programmable and reprogrammable, thus eliminating problematic qubits.

Benefits of technology

It improves the performance, accuracy, and efficiency of quantum computing devices, enables the programmability and reprogrammability of quantum circuits, and meets the requirements for frequency conflict and coherence.

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Abstract

Apparatuses and / or computer-implemented methods for facilitating programmable and / or reprogrammable quantum circuits are provided. According to embodiments, an apparatus can include a superconducting coupler apparatus having a superconducting fuse device to change a coupling of a first quantum computing element and a second quantum computing element.
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