Quantum Key Storage Units for Parallel Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In quantum key distribution systems, existing communication systems face delays and interruptions when multiple transmitting or receiving apparatuses request quantum keys simultaneously, and when key supplies are depleted, leading to inconvenient breaks in key distribution.
Innovation Solution
The implementation of a quantum key distribution system with multiple storage units in both Alice and Bob, allowing for real-time key generation and distribution without delays, using a dedicated quantum key distribution protocol through public and quantum channels, and employing a system where quantum keys are stored and replenished across multiple storage units to ensure continuous supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single storage unit is used to supply quantum keys to multiple apparatuses, then the device complexity is reduced, but the productivity decreases due to delays when multiple apparatuses request keys simultaneously
Solution Approach 1:
The quantum key storage system is divided into multiple storage units (first storage unit, second storage unit, etc.), each capable of independently storing quantum keys. This segmentation allows parallel key supply to multiple apparatuses, eliminating the sequential processing delay inherent in single-storage-unit systems while maintaining manageable system complexity through modular architecture.
Solution Approach 2:
Each storage unit is designed with identical functional capabilities to store and supply quantum keys, making them universally interchangeable. This multi-functionality ensures that any storage unit can serve any apparatus request, enabling flexible parallel operations and improving overall key distribution productivity without requiring complex specialized structures.
2Loss of time
If quantum keys are supplied sequentially to multiple apparatuses, then the device complexity remains low, but the loss of time increases due to waiting delays
Solution Approach 1:
Multiple storage units are pre-filled with quantum keys before distribution begins. This preliminary action ensures that when apparatuses request keys simultaneously, each can be served immediately from its corresponding pre-loaded storage unit without waiting for sequential key generation or transfer, thereby eliminating distribution delays.
Solution Approach 2:
The system maintains continuous key supply capability by having multiple storage units operating in parallel, each continuously available to serve apparatus requests. This eliminates idle time and waiting periods that occur in sequential systems, ensuring uninterrupted and continuous quantum key distribution to multiple apparatuses simultaneously.
3Reliability
If a single storage unit is depleted, then the system simplicity is maintained, but the reliability decreases due to interruptions in key supply
Solution Approach 1:
The system employs multiple storage units as a cushioning mechanism against key depletion. When one storage unit is depleted, other units remain with available keys, providing a buffer that prevents supply interruptions. This beforehand cushioning ensures continuous reliable operation even as individual storage units are exhausted during parallel distribution to multiple apparatuses.
Solution Approach 2:
The system manages multiple storage units by discarding depleted units and recovering/replenishing them with new quantum keys. This approach maintains reliability by ensuring that at least one storage unit is always available for key supply, while the depleted units are systematically recovered and reused, preventing permanent loss of supply capability.
Data Source
AI summary
The present disclosure in some embodiments provides an apparatus and method for supplying quantum keys to multiple apparatuses in a quantum key distribution system. According to some embodiments of the present disclosure, an apparatus and method for supplying quantum keys enable Alice or Bob to deliver the quantum keys to the multiple transmitting apparatuses or receiving apparatuses, in real time without a delay.