Performance Evaluation of Ghost Imaging with Orthogonal/Non-orthogonal Quantum States in Terms of Image Quality

Entangled states constructed from non-orthogonal quantum states have outperformed those constructed from orthogonal states for several application protocols. Nevertheless, the performances achieved with these states depend on the application protocol. With regard to non-orthogonal states, the performance of quantum ghost imaging has not been considered. Quantum ghost imaging is an imaging technique that exploits entangled states. In our previous works, we revealed that the error probability of the ghost imaging with non-orthogonal states was better than that with orthogonal states in some cases. In this work, we compare the visibility performance of quantum ghost imaging when using orthogonal quantum states and non-orthogonal quantum states.