Logical Qubit Compiler Decomposition for Quantum Error Reduction
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Solution Overview
Problem
Current quantum computing systems face high error rates due to the use of physical qubits, and existing quantum operation command structures fail to accurately reflect the operation characteristics of logical qubits, leading to inefficient resource usage and optimization times for logical qubit operations.
Innovation Solution
A dedicated quantum operation command structure for logical qubits is proposed, which decomposes quantum operations into smaller basic operation commands, enabling the expression of intermediate logical qubits and reducing computational resources and execution costs through operation decomposition and optimization at the quantum compiling stage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical qubits are used for quantum operations, then quantum computing can be implemented, but the error rate becomes excessively high
Solution Approach 1:
The patent segments a logical qubit into multiple physical qubits (e.g., 5 physical qubits per logical qubit in surface code implementation). This segmentation allows error correction by distributing quantum information across multiple physical qubits, thereby reducing the error rate while maintaining manageable complexity through modular organization.
Solution Approach 2:
The patent introduces logical qubits as an intermediary layer between physical qubits and quantum algorithms. This intermediary abstracts the complexity of physical qubit error rates, allowing quantum operations to be designed and optimized at the logical qubit level while underlying physical error correction mechanisms operate transparently.
2Productivity
If physical qubit quantum command structure is used for logical qubit operations, then implementation is simple, but resource efficiency and execution time are poor
Solution Approach 1:
The patent performs quantum command compilation and optimization at the logical qubit level before execution. This preliminary action includes decomposing high-level quantum operations into sequences of logical qubit commands, optimizing resource allocation, and scheduling operations in advance, thereby reducing actual execution time while managing complexity through structured compilation.
3Productivity
If logical qubit operations are optimized during execution, then adaptability is high, but scheduling time and computational resources are excessive
Solution Approach 1:
The patent performs comprehensive quantum command optimization and scheduling during the compilation phase rather than during execution. This preliminary optimization includes resource allocation, operation sequencing, and parallel/sequential execution planning, thereby minimizing runtime overhead while maintaining adaptability through the structured logical qubit command framework.
Data Source
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AI summary
A quantum computing system according to an embodiment of the present disclosure includes a logical qubit quantum compiler configured to receive a specific quantum code and to output a quantum kernel based on a quantum basic operation command, a logical qubit quantum kernel executor configured to generate a plurality of physical qubit quantum commands based on the quantum kernel, and a physical qubit quantum system configured to receive the physical qubit quantum command and to perform a physical quantum operation.