Nanofiber Quantum Computing System for Scalable Qubit Interconnection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Quantum computing devices face challenges with qubit susceptibility to noise and decoherence, limiting their scalability and accuracy, and existing platforms struggle to connect multiple quantum computing devices efficiently for large-scale computation.

Innovation Solution

A nanofiber cavity Quantum Electrodynamics (QED) system is configured using an optical cable with a nanofiber region and paired reflectors, evanescently coupled to atoms, enabling an atom-cavity system for quantum computing. This system includes fiber Bragg Gratings, taper regions, and an imaging system for optical tweezer arrays, allowing for precise control and interconnection of qubits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If quantum computing devices use conventional platforms, then qubit operations can be performed, but qubits are highly susceptible to noise and decoherence causing errors

Engineering Contradiction:
Improvecomputation accuracyVSAvoidnoise and decoherence susceptibility
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a nanofiber cavity QED system as an intermediary between qubits and the external environment. The cavity acts as a mediator that enables controlled interaction while isolating qubits from harmful noise and decoherence, thereby improving computation accuracy without sacrificing quantum operations

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The nanofiber cavity creates a protected, isolated environment for qubit operations. This inert quantum environment shields qubits from external noise and decoherence effects, allowing stable quantum computations to proceed without errors from environmental interference

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

2Device complexity

If quantum computing devices are built with limited qubit capacity per device, then device complexity is reduced, but scalability to millions of qubits is limited

Engineering Contradiction:
Improvequbit management complexityVSAvoidscalability to large-scale computation
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent divides the quantum computing system into multiple separate quantum computing devices, each with manageable qubit capacity. This segmentation allows each device to remain relatively simple while the collective network of devices can scale to millions of qubits through interconnection

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The nanofiber cavity QED system provides universal functionality that enables both individual device operation and networked interconnection. This multi-functional platform allows the same system to serve as both a standalone quantum processor and a node in a scalable quantum network

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

3Ease of operation

If quantum computing devices are interconnected using optical fiber network, then long-distance quantum communication is enabled, but connection stability and efficiency are challenging

Engineering Contradiction:
Improveinterconnection capabilityVSAvoidconnection stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The nanofiber cavity system serves as an intermediary interface between quantum devices and optical fiber networks. This mediator enables stable coupling between quantum states and optical photons, ensuring reliable transmission over long distances while maintaining connection stability

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system utilizes changes in optical parameters (wavelength, intensity, phase) to encode and transmit quantum information through optical fibers. By carefully controlling these parameters, the system maintains connection stability and efficiency over long-distance networks

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 system provides a compact, efficient, and scalable quantum computing device capable of long-distance quantum communication and interconnection, enabling control of individual atoms and photons for enhanced accuracy and connectivity among distant quantum computing cells.

Implementation Method 1

evanescently coupled atoms to the nanofiber region to enable an atom-cavity system

Methodology Applied
Scientific EffectEvanescent coupling:

Implementation Method 2

a first fiber Bragg Grating configured on the first end region and a second fiber Bragg Grating configured on the second end region

Methodology Applied
Scientific EffectBragg reflection: Bragg Diffraction

Implementation Method 3

an imaging system configured to generate an optical tweezer array and to detect one or more photons from one or the plurality of atoms

Methodology Applied
Scientific EffectOptical tweezers: Optical Tweezers

Data Source

PatentUS20240403682A1Nanofiber quantum computing system and related method
Publication Date: 2024.12.05 NANOFIBER QUANTUM TECH INC
  • US20240403682A1 patent drawing
  • US20240403682A1 patent drawing
  • US20240403682A1 patent drawing

AI summary

In an example, the present invention provides a quantum computer cell system. The system has a fiber optical cable. In an example, the system has a nanofiber region configured from a center portion of the fiber optic cable and coupled between a first fiber Bragg Grating and a second fiber Bragg Grating. In an example, the system has a first taper region configured from a first portion of the nanofiber region within a vicinity of the first fiber Bragg Grating and a second taper region configured from a second portion of the nanofiber region within a vicinity of the second fiber Bragg Grating. The system has a plurality of atoms evanescently coupled to the nanofiber region. The system has an imaging system configured to generate an optical tweezer array and to detect one or more photons from one or the plurality of atoms.