关键词: 量子通信, 非对称双向受控隐形传态, 非对称双向受控远程态制备, 非对称双向受控量子信息混合传输, 五粒子团簇态

Abstract:

Using a five-particle cluster state as the channel, three bidirectional controlled quantum information transmission protocols for two-particle state and single-particle state are proposed. In the first protocol, Alice can transfer the unknown state of two particles to Bob, and Bob can also transfer the unknown state of a single particle to Alice by introducing auxiliary particles, implementing controlled non gate operation and Bell state measurement. In the second scheme, by introducing auxiliary particles, cleverly constructing orthogonal basis and performing single-particle projective measurement, Alice can help Bob to prepare the known state of two particles remotely, and Bob can also help Alice to prepare the known state of single particle remotely. Because they make full use of the feedforward strategy to construct the measurement basis, the preparation task can be completed perfectly. In the third scheme, combined with the characteristics of the first two schemes, Alice can successfully transfer the unknown state of two particles to Bob, and Bob can perfectly prepare the known state of the single particle at Alice site. The above three schemes cannot be realized without the permission of the supervisor.

Key words: quantum communication, asymmetric bidirectional controlled teleportation, asymmetric bidirectional controlled remote state preparation, asymmetric bidirectional controlled quantum information hybrid transmission, five-particle cluster state