Affiliation:
1. Shanghai Research Center for Quantum Sciences
Abstract
Quantum key distribution (QKD) is an effective solution to ensure the secure transmission of information. However, for the large-scale application of QKD, the interoperability and flexibility of the transmitter and receiver are urgent issues to be solved. Here, for the first time, to the best of our knowledge, we experimentally verify the feasibility of one continuous-variable (CV) QKD system to achieve multiple protocols and rates. The flexibility of the system comes from the modulator realizing multiple protocols and a broadband coherent detector realizing multiple symbol rates. The results show that this system can switch between different rates and protocols to generate the secure key, and reveal its similarity to classical optical communication. Therefore, It can be adjusted according to user needs and provides a system-level solution for building a flexible quantum network.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Shanghai Municipal Science and Technology Major Project
Key R&D Program of Guangdong Province
Subject
Atomic and Molecular Physics, and Optics
Cited by
3 articles.
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