| 摘要 |
PROBLEM TO BE SOLVED: To reduce a load on quantum communication in a quantum network encoding technique that performs multicast of a quantum state.SOLUTION: On a quantum network including N transmission nodes sto sand M reception nodes tto t, a quantum state is encoded and multicast. The reception nodes tto tshare an asymmetric quantum entanglement state among the reception nodes without depending on the communication dimension of the quantum network. All nodes included in the quantum network simulate a classic protocol on the quantum network to generate a quantum state. The reception nodes tto tperform unitary conversion of the quantum state in combination of spaces B, Dand an auxiliary space. The reception nodes tto tuse spaces B, Dto delete the spaces B, D. The reception node tuses an auxiliary space Eto delete the spaces B, D. The reception nodes tto tuse an auxiliary space Eto delete the auxiliary space E. |
