Superconducting Coupler Reconfiguration for Qubit Coherence

The patent extracts and removes problematic qubits from the quantum circuit using superconducting fuse devices. When a qubit exhibits poor coherence or causes frequency collisions, the fuse device is activated to disconnect that specific qubit from the circuit, allowing the system to maintain high-performance qubits while removing degraded ones. This selective extraction resolves the contradiction by enabling quantity scaling while maintaining reliability through active removal of problematic elements.

The patent converts the harmful effect of frequency collisions into a useful diagnostic signal. When frequency collisions occur, they trigger the superconducting fuse device to activate, which then disconnects the problematic qubit. The harmful frequency collision thus becomes beneficial by automatically identifying and isolating the source of the problem, allowing the system to scale qubit quantity while managing frequency collision harms through automated protective mechanisms.

The patent implements superconducting fuse and antifuse devices that serve multiple functions within the quantum circuit. These devices can dynamically connect or disconnect qubits, enable circuit reconfiguration, and protect against frequency collisions. By making these coupling devices multi-functional, the patent achieves high adaptability without proportionally increasing complexity, as the same components perform multiple protective and reconfiguration roles.