Reconfigurable Quantum Coupler Circuit for Qubit Yield Issues
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Solution Overview
Problem
Quantum computing faces challenges with qubit yield and frequency collision issues, particularly as multiqubit devices scale, due to qubits exhibiting varying coherence and quality factors, leading to performance limitations.
Innovation Solution
The implementation of programmable and reprogrammable quantum circuits using superconducting fuse and antifuse devices to alter the coupling between quantum computing elements, allowing for the removal of problematic qubits and reconfiguration of connectivity based on exposure to laser outputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If quantum computing devices scale to multiqubit systems, then computing power increases, but qubit yield and frequency collision issues worsen due to varying coherence and quality factors
Solution Approach 1:
The patent implements dynamic reconfigurability in quantum computing devices by introducing superconducting switch devices that can alter coupling between quantum computing elements in real-time. This allows the system to adapt its connectivity based on qubit performance characteristics, enabling dynamic avoidance of frequency collisions and optimization of quantum circuit operations as the system scales.
Solution Approach 2:
The patent changes the coupling parameter between quantum computing elements by introducing controllable superconducting switch devices. These switches can modify the coupling strength or connectivity between qubits based on their quality factors and frequency characteristics, allowing the system to optimize performance parameters dynamically rather than being fixed during fabrication.
2Adaptability or versatility
If fixed quantum circuits are used, then device complexity is reduced, but adaptability to handle varying qubit performance deteriorates
Solution Approach 1:
The patent applies universality by designing superconducting switch devices that can be integrated into various quantum computing circuit configurations. These switch devices serve multiple functions: they can isolate problematic qubits, reconfigure connectivity patterns, and adapt to different quantum algorithms, making the quantum computing device universally adaptable to various operational requirements without requiring completely different circuit designs.
Solution Approach 2:
The patent introduces superconducting switch devices as intermediary components between quantum computing elements. These intermediary switches act as controllable mediators that can enable or disable coupling between qubits based on performance requirements, providing a flexible layer of control that simplifies the management of complex quantum circuits while maintaining adaptability.
3Reliability
If problematic qubits are removed from quantum circuits, then frequency collision and quality factor issues are improved, but device reconfigurability complexity increases
Solution Approach 1:
The patent extracts problematic quantum computing elements from the active quantum circuit by using superconducting switch devices to isolate them. Instead of physically removing qubits during fabrication, the system extracts them from operational connectivity through controllable isolation, allowing them to be taken out of the computational pathway while maintaining their physical presence on the device for potential future reuse.
Solution Approach 2:
The patent implements dynamic isolation capabilities where superconducting switch devices can selectively disconnect problematic qubits from the quantum circuit in real-time. This dynamic approach allows the system to adaptively remove problematic elements based on measured performance characteristics such as quality factor and frequency alignment, rather than requiring static pre-configuration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables improved performance, accuracy, and efficiency by configuring and reconfiguring quantum circuit connectivity to address issues like poor quality factors and frequency collisions, enhancing the overall operation of quantum computing devices.
Implementation Method 1
a superconducting coupler device having a superconducting fuse device that is used to alter the coupling of a first quantum computing element and a second quantum computing element
Implementation Method 2
a superconducting coupler device having a superconducting antifuse device that is used to alter the coupling of a first quantum computing element and a second quantum computing element
Implementation Method 3
reconfiguring, by a system operatively coupled to a processor, connectivity of quantum computing elements based on exposure of one or more superconducting switch devices provided on one or more superconducting coupler devices to at least one laser output
Data Source
AI summary
Devices and/or computer-implemented methods to facilitate a programmable and/or reprogrammable quantum circuit are provided. According to an embodiment, a device can comprise a superconducting coupler device having a superconducting fuse device that is used to alter the coupling of a first quantum computing element and a second quantum computing element.