Quantum Circuit Device Removal for Noise Resistance
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Solution Overview
Problem
Existing quantum circuit designs face challenges in achieving high fidelity and energy efficiency while being resistant to signal noise and process errors, especially when implementing high-order unitary operations.
Innovation Solution
A quantum circuit designing apparatus and method that removes devices according to their importance, using a processor to analyze noise intensity and determine a ratio of devices to remove, thereby optimizing the hardware platform for quantum computing and deep learning accelerators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all devices are retained in the programmable quantum circuit to maintain full functionality, then the circuit can implement complete unitary operations, but the circuit becomes more susceptible to noise and process errors and consumes more energy
Solution Approach 1:
The patent extracts and removes less important devices from the programmable quantum circuit based on their importance metrics. The processor identifies devices with lower importance values and removes them from the circuit, thereby reducing the total number of devices and minimizing the circuit's susceptibility to noise and errors while preserving the essential functionality for implementing required unitary operations.
2Measurement precision
If more devices are used in the quantum circuit to achieve high fidelity unitary operations, then the operation accuracy improves, but the energy consumption increases
Solution Approach 1:
The patent applies local quality by differentiating the importance of individual devices within the circuit. Each device is assigned an importance metric that reflects its contribution to the overall unitary operation fidelity. The processor uses these localized importance values to selectively remove devices, ensuring that high-fidelity operations are maintained by preserving only the most critical devices while removing less important ones, thus reducing energy consumption without sacrificing overall fidelity.
3Adaptability or versatility
If the quantum circuit is designed with all necessary devices for complete programmability, then the adaptability is maximized, but the circuit becomes more vulnerable to defects and less energy efficient
Solution Approach 1:
The patent applies partial action by removing only the less important devices from the circuit while retaining the essential devices needed for programmability. The processor calculates importance metrics and selectively removes devices below a certain threshold, thereby achieving partial removal that maintains the circuit's adaptability and programmability while reducing the total number of devices and their vulnerability to defects.
Data Source
AI summary
A quantum circuit designing apparatus and method is provided. The quantum circuit designing apparatus includes a processor, and a memory configured to store at least one command to be executed by the processor, wherein the processor removes devices according to importance of each of the devices in a programmable quantum circuit.