A simple scheme for quantum networks based on orbital angular momentum states of photons |
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| Authors: | Zhi-Kun Su Fa-Qiang Wang Rui-Bo Jin Rui-Sheng Liang Song-Hao Liu |
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| Affiliation: | aLaboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, PR China |
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| Abstract: | We propose a new quantum network scheme using orbital angular momentum states of photons to route the network and spin angular momentum states to encode the information. A four-user experimental scheme based on this efficient quantum network is analyzed in detail, which is particularly appealing for the free space quantum key distribution. Users can freely exchange quantum keys with each other. |
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| Keywords: | Quantum network Orbital angular momentum Spin angular momentum |
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