Quantum Dialogue Agreement Immune Joint Rotation Noise Robust

Noise is a serious challenge that militates against the security of quantum dialogue, quantum information fidelity, quantum channel capacity, and quantum information disclosure. In order to solve this problem, we propose a robust quantum dialogue protocol that is immune against joint rotation noise, establish a logical quantum state that is immune to the combined rotation noise in the cluster state which also serves as a quantum carrier, and then construct the corresponding decoherence free subspace (DFS). With advantages of the entangled exchange of quantum cryptography, steganography, and eavesdropping detection, etc, a quantum fidelity dialogue model is realized which is resistant against rotational noise. This model therefore ensures the accuracy and security of the exchange of confidential information through a quantum channel. By comparison, the proposed protocol has the highest quantum bit efficiency, and the measurement requires only a single photon.