Quantum Isolation Zones for Secure Qubit Access Control
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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 ensure that one quantum process does not inadvertently access a qubit utilized by another process, protect qubits with private information, and isolate quantum processes from each other.
Innovation Solution
Implementing quantum isolation zones (QIZs) that restrict qubit visibility and access to specific groups of qubits, using a QIZ controller to manage qubit allocation and metadata, and establishing quantum process relationship graphs to facilitate visibility among related processes within the same QIZ.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If quantum computing systems implement larger numbers of qubits, then computational power increases, but the risk of unauthorized access between processes increases
Solution Approach 1:
The patent divides the quantum computing system into isolated zones (QIZs), where each zone contains a specific group of qubits accessible only to authorized quantum processes. This segmentation prevents unauthorized cross-process access while allowing the system to scale to larger numbers of qubits, directly resolving the contradiction between increasing qubit quantity and maintaining access control security.
2Adaptability or versatility
If quantum processes can access more qubits, then computational flexibility increases, but the ability to protect private information decreases
Solution Approach 1:
The patent implements quality isolation where each quantum isolation zone has distinct access permissions and visibility rules. Quantum processes within a zone can flexibly access allocated qubits, but the zone's boundary ensures that private information remains protected from other processes. This local quality differentiation resolves the contradiction by allowing high flexibility within zones while maintaining security between zones.
3Reliability
If quantum isolation zones are implemented, then access control security improves, but system complexity increases
Solution Approach 1:
The patent implements metadata-driven automatic access control where qubit metadata automatically tracks which qubits belong to which quantum isolation zones. The system self-manages allocation and visibility control without requiring complex manual configuration, reducing the operational complexity while maintaining strong access control security.
4Reliability
If qubit visibility is restricted to allocated groups, then process isolation improves, but resource utilization efficiency decreases
Solution Approach 1:
The patent implements dynamic qubit allocation within quantum isolation zones, where the QIZ controller can allocate and deallocate qubits to quantum processes based on demand. This dynamic management allows processes to access exactly the qubits they need when they need them, maintaining strong process isolation while optimizing overall qubit utilization efficiency through flexible resource distribution.
Data Source
AI summary
A quantum isolation zone (QIZ) controller executing on a quantum computing system receives, from a first requestor, a request to allocate a group of qubits from a plurality of available qubits that are implemented by the quantum computing system and to establish a QIZ that limits qubit visibility of any quantum process associated with the QIZ to the qubits in the group of qubits. The QIZ controller selects the group of qubits from the plurality of available qubits. The QIZ controller obtains a unique QIZ identifier (QIZID) that uniquely identifies the QIZ. The QIZ controller modifies qubit metadata of the group of qubits to indicate that each qubit in the group of qubits is associated with the QIZ.