Networking method based on large scale monatomic cavity quantum network

Abstract

A networking method based on the large scale monatomic cavity quantum network. The flow includes: (1) building a quantum secret key distributing layer based on a monatomic cavity to form a quantum network; (2) building a model where a classical communication network and a quantum secret distributing layer are combined; (3) mapping quantum nodes and quantum link performance in the quantum secret key distributing layer on the corresponding classical network nodes and the classical link in the classical communication network through an uplink; (4) enabling the classical communication network to execute highest distributing efficiency routing algorithm; (5) transmitting acquired classical routing information to the quantum secret key distributing layer and assisting corresponding quantum nodes; (6) building the proper quantum route according to acquired classical information on the quantum secret key distributing layer according to obtained classical information; and (7) conducting following quantum secret key distributing operation after the quantum route is established. The networking method has the advantages of being simple in principle, convenient to operate, easy to achieve, wide in suitable range, capable of strengthening practicability and expandability of the quantum network and the like.

Description

technical field [0001] The invention mainly relates to the field of large-scale quantum communication networks, in particular to a networking method based on a large-scale single-atom cavity quantum network. Background technique [0002] Quantum communication is the product of the combination of quantum theory and information theory, and it is the frontier of communication and information research. Among them, Quantum Key Distribution (QKD) technology is a relatively mature quantum communication technology. Quantum key distribution can share keys absolutely securely between two long-distance communication parties. This process is guaranteed by the non-cloning principle and uncertainty principle of quantum mechanics rather than the computational complexity that classical key distribution relies on. Thus, the security of the key system is raised to a new height. At present, the quantum key distribution network with limited nodes (n≤10) has been implemented and deployed. Qua...

AI Technical Summary

Problems solved by technology

Here is a problem. If the quantum network structure and scale become complex and large, how to find an optimal route among many different quantum links between different users becomes a thorny problem.

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