Hybrid Quantum-Classical Computing System Scaling Qubit Coherence

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Solution Overview

Problem

Maintaining quantum coherence and entanglement in qubits is challenging due to exponential degradation with the number of qubits, limiting the number of fully coherent qubits that can be integrated in a single processor.

Innovation Solution

A hybrid quantum-classical computer system is proposed, comprising multiple entangled qubits in both quantum processors and classical processors. Detectors read the states of qubits, and classical processors determine outputs based on these states, generating signals to apply to other qubits, effectively modulating their states.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the number of qubits in a fully quantum computer processor is increased, then the computational power is improved, but the quantum coherence and entanglement degrade exponentially

Engineering Contradiction:

Improvenumber of qubitsVSAvoidquantum coherence

Core Design Contradiction:

Quantity of substanceVSReliability

Solution Approach 1:

The patent divides the quantum computer into multiple separate quantum processors, each containing a limited number of qubits that can maintain coherence. These processors are coupled through classical communication channels, allowing the system to scale beyond the coherence limits of individual processors while maintaining reliable quantum operations within each segment.

Inventive Principle:

Principle #1Segmentation

2Productivity

If more qubits are integrated in a single processor, then the computational capability is improved, but the quantum entanglement stability deteriorates

Engineering Contradiction:

Improvecomputational capabilityVSAvoidquantum entanglement stability

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The patent introduces a new dimension to quantum computing by coupling quantum processors through classical communication channels. This hybrid quantum-classical architecture allows computational capability to scale across multiple processors while each processor maintains stable entanglement within its own qubit set, effectively solving the stability problem by distributing the system across spatial and architectural dimensions.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Quantity of substance

If the number of entangled qubits is increased, then the quantum computing power is improved, but the degradation of quantum coherence occurs exponentially

Engineering Contradiction:

Improvenumber of entangled qubitsVSAvoidquantum coherence degradation

Core Design Contradiction:

Quantity of substanceVSLoss of energy

Solution Approach 1:

The patent introduces classical communication channels as intermediaries between quantum processors. These classical channels mediate the interaction between qubits in different processors, allowing the system to effectively increase the number of entangled qubits across the distributed system while each individual processor maintains its quantum coherence without exponential degradation.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12203929B2Hybrid quantum-classical computing system and method

Publication Date: 2025.01.21 UNIVERSITY OF VERMONT

AI summary

Disclosed herein are systems and uses of systems operating between fully quantum coherent and fully classical states. Examples include a hybrid quantum-classical computing system comprising a plurality of quantum processors connected via classical means.