Quantum identity authentication protocol via perturbed probability amplitudes

arXiv:2611.04129v1 Announce Type: new Abstract: Quantum identity authentication is an effective solution for establishing mutual trust between communicating parties in the post-quantum era. To address the risk of partial secret information leakage under special measurements, this paper designs a quantum identity authentication protocol based on perturbed probability amplitudes. The protocol first proposes a method of encoding a random sequence onto the probability amplitudes of quantum entangled states, forming perturbed probability amplitudes, thereby reducing the involvement of shared information between the sender and receiver.