Modular Quantum Processing with Interferometric Photonic Gates

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Solution Overview

Problem

Existing quantum computing architectures face challenges in scalability, modularity, and long-distance connectivity, particularly in fault-tolerant quantum computing, with current implementations struggling to achieve deterministic high-fidelity gates using photonic gates that are often probabilistic.

Innovation Solution

A modular quantum data processing system utilizing non-interacting quantum emitters that emit entangled photons, enabling long-distance connectivity and fault-tolerant quantum computing through repeat-until-success photonic gates, with a quantum gate module performing optical transformations and interferometry to achieve entangling and unitary gates between distant qubits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If photonic gates are used for quantum data processing, then long-distance connectivity and modularity are improved, but gate fidelity and determinism deteriorate due to probabilistic nature

Engineering Contradiction:

Improvelong-distance connectivityVSAvoidgate fidelity

Core Design Contradiction:

Length of moving objectVSReliability

Solution Approach 1:

The patent introduces an interferometer unit as an intermediary device that mediates the interaction between photons from different quantum emitters. This interferometer enables deterministic entangling gates by interfering photonic modes and detecting specific patterns, thereby maintaining gate fidelity while achieving long-distance connectivity through photonic mediation between distant quantum emitters.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system implements feedback through photon detection and classical data processing. The interferometer unit detects photon patterns and generates outcomes that are fed back to control the quantum emitters and router, enabling the system to achieve deterministic gate operations despite the inherently probabilistic nature of photonic processes.

Inventive Principle:

Principle #23Feedback

2Adaptability or versatility

If modular quantum data processing system is implemented, then scalability and modularity are improved, but system complexity increases due to multiple components

Engineering Contradiction:

ImprovemodularityVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent divides the quantum data processing system into distinct modular components: quantum emitters, interferometer units, photon routers, and classical processing units. Each module performs a specific function and can be independently implemented or scaled, thereby improving modularity and adaptability while managing system complexity through functional decomposition.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The interferometer unit serves multiple functions within the modular architecture: it performs optical transformations, enables entangling gates between different quantum emitters, and provides measurement capabilities. This multi-functionality reduces the need for separate dedicated components, thereby managing system complexity while maintaining modularity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Productivity

If quantum emitters are used to generate entangled photons, then quantum data processing capability is improved, but resource requirements increase due to multiple emitters and photonic components

Engineering Contradiction:

Improvequantum error correction rateVSAvoidresource footprint

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

The patent merges multiple photonic modes from different quantum emitters within a single interferometer unit, allowing simultaneous processing of multiple quantum data streams. This combining approach enables high-rate quantum error correction by processing multiple photons in parallel while sharing common infrastructure, thereby improving productivity without linearly increasing the resource footprint.

Inventive Principle:

Principle #5Merging (Combining)

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

Enables scalable, fault-tolerant quantum computing by allowing interaction between distant data and ancilla qubits, facilitating high-rate quantum error correction and reducing resource footprint, while supporting non-local quantum error correction and efficient quantum algorithm execution.

Implementation Method 1

the interferometer unit being configured to make at least said entangled photon PH1 interferes with at least said entangled photons PH2

Methodology Applied

Scientific EffectInterference: Interference

Implementation Method 2

said entangled photon PH1 being entangled with said first quantum emitter QE1, preferably said entangled photon PH1 carrying at least one quantum data QI1 related to said first quantum emitter QE1

Methodology Applied

Scientific EffectEntanglement:

Data Source

PatentUS20260073272A1A modular quantum data processing system

Publication Date: 2026.03.12 QUANDELA

AI summary

A modular quantum data processing system includes at least: a first quantum data module, a second quantum data module, a quantum gate module, a quantum circuit router, a quantum channel module, a classical channel module, and a classical processing module. The quantum channel module includes a plurality of quantum channels, and the classical channel module includes a plurality of quantum channels.