Multi-Stage Cryogenic Cooling System for Scalable Quantum Computing

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Quantum computing systems face challenges in cooling superconducting qubits to achieve superconductivity, and communication between classical and quantum systems is inefficient due to physical signal lines acting as thermal conductors, reducing cooling system efficiency.

Innovation Solution

A cryogenic cooling system with multiple stages, each at progressively lower temperatures, including a first stage at 60 kelvin or greater, and a seventh stage at 10 millikelvin or less, with wiring ports allowing consistent cooling across different systems, reducing the need for customized wiring and enabling efficient scaling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If physical signal lines are used for communication between classical and quantum systems, then communication is enabled, but thermal conductivity increases reducing cooling efficiency

Engineering Contradiction:
Improvecooling efficiencyVSAvoidthermal conductivity
Core Design Contradiction:
Loss of energyVSObject-generated harmful factors

Solution Approach 1:

The patent introduces wiring ports as intermediary components that enable communication between classical and quantum systems while minimizing thermal conduction. These ports serve as controlled interfaces that allow electrical signals to pass while maintaining thermal isolation, thus enabling communication without significant heat transfer that would compromise cooling efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional mechanical wiring connections with a wiring port interface system that separates the electrical connection function from thermal conduction. This substitution allows signal transmission while reducing the harmful thermal conductivity effect through specialized port designs that minimize heat transfer pathways.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If multiple cryogenic cooling systems are deployed for scaling quantum computing, then processing power increases, but device complexity and customization requirements increase

Engineering Contradiction:
Improvequantum computing processing powerVSAvoidsystem configuration complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements universal wiring ports with standardized configurations that can be used across multiple cryogenic cooling systems. This universality allows different quantum computing modules to be interconnected using the same interface standards, enabling scaling to higher processing power without proportionally increasing system complexity or customization requirements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent divides the quantum computing system into modular segments, each with its own cryogenic cooling system and standardized wiring ports. This segmentation allows independent development, testing, and deployment of individual modules that can be scaled and reconfigured flexibly, reducing overall system complexity while maintaining high processing power through parallel modular operations.

Inventive Principle:
Principle #1Segmentation

3Ease of manufacture

If wiring ports are standardized across cooling systems, then ease of manufacture and scaling improve, but customization for specific thermal requirements may be limited

Engineering Contradiction:
Improvesystem assembly easeVSAvoidthermal configuration adaptability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent employs wiring ports with adjustable parameters such as thermal conductivity, electrical impedance, and geometric dimensions that can be modified within standardized design constraints. This allows the same basic port structure to be adapted for different thermal requirements by changing specific parameters rather than redesigning the entire interface, thus maintaining ease of manufacture while preserving adaptability.

Inventive Principle:
Principle #35Parameter changes

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

The multi-stage cryogenic cooling system effectively cools quantum hardware to achieve superconductivity and maintains efficient communication between classical and quantum systems by minimizing thermal conductivity through consistent cooling stages, enhancing the scalability and performance of quantum computing systems.

Implementation Method 1

cooling superconducting qubits to achieve superconductivity

Methodology Applied
Scientific EffectSuperconductivity: Superconductivity

Implementation Method 2

cryogenic cooling system with multiple stages, each at progressively lower temperatures

Methodology Applied
Scientific EffectCryogenic cooling: Cryogenics

Data Source

PatentUS20240353904A1Cryogenic Cooling System Configuration for Multi-Unit Scaling for Quantum Computing Systems
Publication Date: 2024.10.24 GOOGLE LLC
  • US20240353904A1 patent drawing
  • US20240353904A1 patent drawing
  • US20240353904A1 patent drawing

AI summary

Cryogenic cooling systems for use in quantum computing applications are provided. In one example, the cryogenic cooling system may include a plurality of stages. Each stage may be associated with an operating temperature. Each stage may be progressively cooler when moving from a first stage of the plurality of stages to a subsequent stage of the plurality of stages. The first stage of the plurality of stages may be associated with an operating temperature of about 60 kelvin or greater.