Quantum Internet Router Entangled Channel Routing
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Solution Overview
Problem
Traditional Internet communications face limitations in security and processing capabilities due to attenuation in optical signal transmission mediums, making it difficult to efficiently route and transport quantum states like qubits across network nodes.
Innovation Solution
A quantum Internet router system that utilizes quantum entangled channels established with entangled particle pairs to route qubits through a network of nodes, performing Bell State Measurements and quantum state recovery operations to ensure reliable transmission, even over long distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If quantum states are transmitted through classical optical channels, then transmission distance is limited due to attenuation, but using quantum entangled channels requires complex Bell State Measurements and quantum state recovery operations
Solution Approach 1:
The patent introduces quantum entangled channels as intermediary transmission media between network nodes. These entangled channels serve as mediators that enable long-distance quantum state transmission by establishing quantum correlations between distant nodes, overcoming the attenuation limitations of classical optical channels while managing complexity through structured Bell State Measurements and quantum state recovery operations at intermediate nodes
2Reliability
If quantum entangled channels are used for long-distance transmission, then transmission reliability improves, but network node complexity increases due to multiple quantum operations required
Solution Approach 1:
The patent segments the quantum transmission network into discrete nodes that each perform specific quantum operations (Bell State Measurements, quantum state recovery). This segmentation allows the overall complex task of long-distance quantum transmission to be divided into manageable local operations at each node, improving reliability through distributed quantum processing while controlling individual node complexity
Solution Approach 2:
The patent implements feedback mechanisms where network nodes perform Bell State Measurements and use the measurement outcomes to guide quantum state recovery operations. This feedback loop ensures reliable quantum state transmission by allowing nodes to adapt their operations based on real-time quantum measurement results, thereby improving transmission reliability while managing complexity through controlled feedback processing
3Device complexity
If classical digital information channels are used for routing, then network infrastructure is simpler, but security and processing capabilities are limited
Solution Approach 1:
The patent creates a hybrid network infrastructure where classical digital information channels and quantum entangled channels coexist and serve different functions. Classical channels handle routing control and coordination, while quantum channels provide secure quantum state transmission. This multi-functionality allows the network to leverage the simplicity of classical infrastructure while simultaneously achieving the enhanced security and processing capabilities of quantum communication
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 efficient and secure transportation of quantum states across multiple network nodes by leveraging quantum entangled channels, overcoming the limitations of classical channels and enhancing processing capabilities.
Implementation Method 1
A quantum Internet router is an example of a network node configured to transport qubits from a source network node to a destination network node. The network node may be coupled with one or more other network nodes by classic channels (e.g., a digital information channel) and one or more quantum entangled channels (e.g., established using entangled particle (EP) pairs)
Implementation Method 2
The network node (e.g., a first network node) may receive a command from a second network node via the digital information channel. The command may include an indication of the destination network node, a Bell State Measurement (BSM), and an identifier of EPs corresponding to a quantum entangled channel
Data Source
AI summary
A method for quantum routing is performed by a relay network node that is connected to a plurality of nearest-neighbor network nodes. The method includes receiving, from a source network node of the plurality of nearest-neighbor network nodes, a first command indicating a destination network node. The method includes selecting, based on the destination network node, a next-hop network node from the nearest-neighbor network nodes. The method includes determining a number of current quantum-entangled channels between the relay network node and the next-hop network node. The method includes establishing a new quantum-entangled channel between the relay network node and the next-hop network node in response to the number of current quantum-entangled channels being less than a threshold.