Hybrid Quantum-Classical Circuit Carrier Integration
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Solution Overview
Problem
Hybrid quantum-classical algorithms experience significant latency due to serial data transfer between classical and quantum processors, which is exacerbated by the need for serial classical interfaces and complex cooling requirements in conventional quantum computers.
Innovation Solution
A quantum computer design featuring a common circuit carrier for both classical and quantum circuits, eliminating the need for serial classical interfaces and allowing for simultaneous cooling, thereby reducing latency and simplifying operation by integrating classical and quantum circuits on a semiconductor basis, such as silicon, with quantum gates implemented for superconducting qubits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If serial data transfer between classical and quantum processors is used, then data exchange is enabled, but latency increases significantly
Solution Approach 1:
The patent merges the classical processor and quantum processor onto a single circuit carrier, enabling direct integration and parallel operation. This eliminates the need for external serial data transfer interfaces and reduces latency by allowing direct interaction between classical control circuits and quantum processing elements within the same substrate.
2Adaptability or versatility
If separate classical and quantum processors are used, then functional specialization is achieved, but device complexity increases
Solution Approach 1:
The patent combines multiple processor types (classical and quantum) on a single circuit carrier, reducing the number of separate components and interfaces needed. This integration approach maintains functional specialization while reducing overall system complexity by eliminating external connection requirements.
Solution Approach 2:
The circuit carrier serves multiple functions simultaneously: it provides the substrate for both classical and quantum circuits, integrates cooling functionality, and enables direct interconnection between different processor types. This multi-functionality reduces the need for separate specialized components.
3Reliability
If quantum circuits are cooled separately from classical circuits, then quantum operation is maintained, but heat input problems occur
Solution Approach 1:
The patent integrates the cooling system directly into the circuit carrier, allowing simultaneous cooling of both classical and quantum circuits. The cooling element is positioned to provide uniform temperature control across the entire carrier, preventing localized heat accumulation and eliminating the need for separate cooling systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design achieves almost latency-free integration of classical and quantum circuits, reducing heat input and the complexity of data transfer, particularly during iterative calculations, and simplifies the operation of the quantum computer by eliminating the need for numerous supply lines and complex signal conversions.
Implementation Method 1
currently known quantum circuits typically require extremely low temperatures for operation. However, with such known quantum circuits, the introduction of heat is a major problem, which can disrupt or prevent the quantum circuit from operating.
Implementation Method 2
the classical circuit and the quantum circuit can be cooled together, thus effectively preventing heat input into the quantum circuit
Data Source
Figure 1~2
AI summary
The quantum computer for hybrid quantum-classical information processing has a circuit carrier on which at least one circuit comprising one or more gates not designed as quantum gates, as well as at least one quantum circuit comprising one or more quantum gates, are arranged.