Virtual Quantum Chip Partitioning for Parallel Task Execution
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Solution Overview
Problem
Conventional quantum computing systems face low utilization of computing resources due to the limitation of physical quantum chips executing only one quantum task at a time, leading to inefficient resource use and high maintenance costs.
Innovation Solution
Divide a physical quantum chip into multiple virtual quantum chips, allowing simultaneous execution of different quantum tasks by ensuring non-overlapping partial structures, thereby improving resource utilization and reducing maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a physical quantum chip executes only one quantum task at a time to avoid errors in physical qubit states, then execution accuracy is maintained, but computing resource utilization deteriorates
Solution Approach 1:
The physical quantum chip is segmented into multiple virtual quantum chips through qubit mapping, where each virtual quantum chip corresponds to a specific subset of physical qubits. This segmentation allows different quantum tasks to be assigned to different virtual quantum chips that can execute simultaneously without interfering with each other, thus improving resource utilization while maintaining execution accuracy through isolation.
Solution Approach 2:
A single physical quantum chip is made multi-functional by enabling it to execute multiple quantum tasks simultaneously through the virtual quantum chip architecture. Each virtual quantum chip can independently execute quantum tasks, allowing the physical chip to serve multiple purposes at once, thereby improving computing resource utilization without compromising the reliability of individual task executions.
2Productivity
If multiple quantum tasks are executed simultaneously on the same physical quantum chip, then computing resource utilization is improved, but error rates in physical qubit states increase
Solution Approach 1:
The physical quantum chip is divided into multiple isolated virtual quantum chips, each managing its own subset of physical qubits. This segmentation ensures that quantum tasks executed on different virtual quantum chips do not interfere with each other's qubit states, maintaining accuracy while enabling parallel execution of multiple tasks on the same physical hardware.
Solution Approach 2:
The virtual quantum chip acts as an intermediary layer between the physical quantum chip and the quantum tasks. This intermediary manages the mapping and isolation of qubit resources, allowing multiple tasks to run simultaneously on the physical chip while preventing errors and interference between tasks through proper resource allocation and separation.
3Productivity
If more physical quantum chips are deployed to handle increasing quantum tasks, then task execution capacity is improved, but maintenance costs increase
Solution Approach 1:
Each physical quantum chip is designed to function as multiple virtual quantum chips, enabling a single physical device to handle multiple quantum tasks simultaneously. This multi-functionality increases task execution capacity without requiring proportional increases in the number of physical chips, thereby reducing maintenance costs and device complexity while maintaining high productivity.
Solution Approach 2:
Multiple virtual quantum chips are merged within a single physical quantum chip through shared hardware resources and unified control architecture. This merging allows the system to handle increasing task loads by utilizing virtualization rather than physically expanding the hardware infrastructure, thus avoiding the increased maintenance costs that would accompany additional physical chips.
Data Source
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AI summary
A method and an apparatus for executing a quantum task, a device, and a storage medium, which relate to the field of quantum technologies. The method includes: obtaining (310) a logical quantum circuit, where the logical quantum circuit is an abstract logic circuit configured to execute the quantum task; generating (320) a virtual quantum circuit for the quantum task according to topology information of a virtual quantum chip and the logical quantum circuit, where the virtual quantum chip represents a partial structure of a physical quantum chip, the topology information indicates topology relationship among all virtual qubits in the virtual quantum chip, and the virtual quantum circuit is a circuit constructed using at least a part of the virtual qubits; generating (330) a physical quantum circuit for the quantum task according to the virtual quantum circuit and qubit mapping between the virtual quantum chip and the physical quantum chip, where the qubit mapping indicates a respective physical qubit, of the physical quantum chip, represented by each of the virtual qubits; and executing (340) the quantum task through the physical quantum circuit constructed in the partial structure of the physical quantum chip to obtain an execution result of the quantum task.