Quantum Isolation Zones for Secure Qubit Sharing Across Processes
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Solution Overview
Problem
As quantum computing systems implement larger numbers of qubits, there is a need to control access to qubits to prevent inadvertent access between quantum processes and ensure isolation of qubits containing private information, while enabling qubit sharing among related processes.
Innovation Solution
Implementing quantum isolation zones (QIZs) to allocate qubits to specific quantum processes and restrict visibility to only those qubits within the same zone, using a QIZ controller to manage qubit allocation and visibility based on process definitions and requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If quantum processes have broad access to qubits for flexibility, then ease of operation is improved, but security and isolation are worsened due to inadvertent access between processes
Solution Approach 1:
The patent divides the quantum computing system into isolated zones (QIZs), where each zone contains a specific set of qubits accessible only to designated quantum processes. This segmentation prevents inadvertent cross-process access while maintaining flexibility within each zone, resolving the contradiction between broad accessibility and process isolation.
2Productivity
If qubits are shared among multiple processes for resource efficiency, then productivity is improved, but security is worsened due to potential unauthorized access
Solution Approach 1:
The patent introduces an intermediary layer (the QIZ controller and zone management mechanism) that mediates between quantum processes and qubits. This intermediary enforces access control policies, allowing legitimate sharing of qubits among multiple processes while preventing unauthorized access, thus resolving the security-productivity contradiction.
3Reliability
If strict isolation is implemented between quantum processes for security, then reliability is improved, but device complexity increases due to management overhead
Solution Approach 1:
The patent implements a universal QIZ framework that provides isolation, security, and resource management through a standardized mechanism applicable to all quantum processes. This multi-functional approach consolidates multiple management tasks into a single unified system, reducing overall complexity while maintaining strict isolation guarantees.
Data Source
AI summary
Migrating container-based quantum processes to quantum isolation zones (QIZs) is disclosed herein. In one example, a processor device of a quantum computing device receives a container specification file comprising an indication of a process definition file of a quantum process and an indication of an execution requirement of the quantum process. The processor device determines, based on the execution requirement, that a QIZ provided by the quantum computing device satisfies the execution requirement of the quantum process, wherein the QIZ limits qubit visibility of any quantum process associated with the QIZ to qubits associated with the QIZ. In response to the determining, the processor device allocates one or more qubits of a plurality of qubits associated with the QIZ to the quantum process based on the process definition file, and initiates execution of the quantum process to utilize the one or more qubits, based on the process definition file.