A Routing Method for Quantum Communication Network Based on Mesh Structure
A technology of quantum communication and communication path, applied in the field of quantum communication and information transmission, can solve problems such as the rarity of research on Mesh structure quantum communication network, and achieve the effect of quantum state transmission
Active Publication Date: 2019-03-19
SOUTHEAST UNIV
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Problems solved by technology
At present, the research work on quantum information based on Mesh structure mainly focuses on distributing quantum secret keys in Mesh structure network, but the research on Mesh structure quantum communication network is still relatively rare.
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[0039] The present invention will be further described below in conjunction with the accompanying drawings.
[0040] like figure 1 Shown is the Mesh quantum backbone network composed of nodes E~I, and the nodes E~I form the Mesh quantum backbone network, where E, F and G are the edge nodes of the backbone network, H and J are the secondary edge nodes of the backbone network, and I is the other Nodes, A~D are terminal nodes, the solid line indicates that there is a wireless channel between nodes, and the dotted line indicates that there is a quantum channel between nodes. We define the message format as follows:
[0041] Table 0-1 Message format
[0042] Routing message type
source node
Destination node
The serial number of the source node
address
Measurement value
Measurement results
[0043] Among them: The value of the routing message type is: 00-terminal routing request, 01-routin...
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The invention discloses a routing method for a Mesh-structure-based quantum communication network. The method is used for realizing Mesh-structure-based quantum communication, and comprises the following steps: a source node initiates a routing request to an edge node of a backbone network, the edge node of the backbone network initiates the routing request to a secondary edge node, connected with the edge node, in the backbone network, the secondary edge node initiates the routing request to the backbone network in a broadcast manner, a secondary edge node connected with an edge node, connected with a destination node, of the backbone network performs path selection and routing responding, each node on a path on which a response message is received performs Bell basis measurement and carries a measurement result in the routing response message for transmission to the source node, the source node performs Bell base measurement, and transmits all the measurement results to the edge node, connected with the destination node, of the backbone network and finally to the destination node along a selected path, and the destination node processes all the measurement results, and performs unitary transformation to obtain a quantum state carrying information.
Description
technical field [0001] The invention relates to a routing method for a quantum communication network based on a Mesh structure, which belongs to quantum communication and information transmission technologies. Background technique [0002] Quantum communication technology is a field combining quantum theory and information theory. It is a research hotspot in the field of information. Quantum communication technology uses the characteristics of quantum non-replicable, instantaneous, irreversible, and non-local to achieve absolutely secure communication. It is a future communication technology. An important strategic direction for development. The quantum communication network that transmits information through quantum has also become a hot issue that needs to be studied in quantum communication technology. Quantum communication networks can transmit quantum information through two types of carriers: single quantum states and entangled states. For quantum measurement, quantu...
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IPC IPC(8): H04B10/70H04L12/721
CPCH04B10/70H04L45/70
Inventor 王霄峻孟令震余旭涛
Owner SOUTHEAST UNIV