Routing method for quantum Mesh network
A routing and quantum technology, applied in the field of quantum communication network transmission, can solve problems such as difficult to complete long-distance quantum information transmission, and achieve the effect of improving transmission efficiency and reducing delay
Active Publication Date: 2015-11-25
SOUTHEAST UNIV
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Problems solved by technology
Due to the unclonability of the quantum itself and the interference loss of the channel during the transmission process, there are many uncertainties in the direct transmission of the quantum through multiple intermediate nodes, and it is difficult to complete the ideal long-distance quantum information transmission.
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[0043] In order to better illustrate the present invention, a specific communication step of the present invention is now given. For convenience of description, the definition:
[0044]
[0045] Table 0-1 Message format
[0046] Among them, routing message type: 00 terminal routing request, 01 routing response request. 10 is the measurement result data package. The routing request message has no measurement result item.
[0047] When the source node sends the routing request information for the first time, the sequence number of the source node is set to 1, and then increases successively, and then starts to cycle the process from 1 after reaching the maximum value.
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The invention discloses a routing method for a quantum Mesh network. A source node originates a route request to a backbone network edge node connected with the source node and the backbone network edge node sends the route request to a backbone network; a backbone network edge node connected with a destination node performs routing and makes a route reply; each node receiving a reply message on the route performs Bell state measurement and transmits a route reply message carrying a measurement result to the source node; after the source node performs the Bell state measurement, all the measurement results are transmitted to the backbone network edge node connected with the destination node along the selected route; the edge node sends all the measurement results to the destination node; and the destination node processes all the measurement results and obtains a quantum state carrying information by virtue of unitary transformation. The routing method for the quantum Mesh network is capable of providing safer and more reliable quantum information transfer; in addition, the Bell state measurement is performed in the process of establishing a route, so that the time delay of information transmission can be reduced and the transmission efficiency can be improved.
Description
technical field [0001] The invention relates to a quantum communication network transmission technology, in particular to a quantum network routing method using a Mesh structure. Background technique [0002] Quantum communication technology is a research hotspot in the field of quantum informatics. Quantum communication technology can make communication absolutely safe by using quantum characteristics. It is an important strategic direction for the development of future communication technology. The quantum communication network that transmits information through quantum has also become an important 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. Due to the unclonability of the quantum itself and the interference loss of the channel during the transmission process, there are many uncertainties in the direct transmiss...
Claims
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Login to View More IPC IPC(8): H04L12/701H04L9/08
Inventor 刘明阳余旭涛张在琛占海涛熊佩颖王霄峻
Owner SOUTHEAST UNIV
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