Quantum Circuit Segmentation for Distributed Task Processing
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Solution Overview
Problem
Quantum computing tasks are challenging to decompose into independent sub-tasks for distributed processing due to the sequential nature of quantum circuits, where the output of one sub-circuit affects the input of another, unlike classical computing where tasks are mutually independent.
Innovation Solution
A method to cut a quantum circuit into independent sub-circuits based on the evolution process of a qubit's state, allowing for separate initial state preparation and measurement of each sub-circuit, with results combined to achieve computation outcomes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If quantum circuit decomposition is based on sequential sub-circuits, then the quantum computing task can be processed, but the sub-tasks are not mutually independent and cannot be efficiently distributed
Solution Approach 1:
The patent segments the quantum circuit into multiple independent quantum computing sub-tasks by identifying cut points where qubit interactions are minimized. Each sub-circuit is prepared with appropriate initial quantum states, allowing independent processing while maintaining overall computational integrity through result combination.
2Loss of time
If distributed computing is implemented for quantum tasks, then computing time can be reduced, but the sequential nature of quantum circuits prevents independent sub-task processing
Solution Approach 1:
The patent performs preliminary analysis of the quantum circuit to identify optimal cut points and determine initial quantum states for each sub-circuit before distribution. This preliminary preparation ensures that sub-tasks can be independently executed on distributed quantum devices without requiring complex inter-task coordination during execution.
Data Source
AI summary
Disclosed are a quantum computing task processing method and a quantum computing task processing apparatus, and a quantum computer operating system. The method includes: cutting a quantum circuit corresponding to a quantum computing task into a plurality of quantum sub-circuits based on an evolution process of a quantum state of a qubit in the quantum circuit; separately preparing an initial quantum state of a qubit in each of the quantum sub-circuits; measuring a qubit, obtained after the initial quantum state is prepared, in each of the quantum sub-circuits, to obtain measurement results of each of the quantum sub-circuits; and combining the measurement results of each of the quantum sub-circuits to obtain computation results of the quantum computing task.