Quantum gambling using three nonorthogonal states
Won-Young Hwang, Keiji Matsumoto · Physical Review A · 2002
We provide a quantum gambling protocol using three (symmetric) nonorthogonal states. The bias of the proposed protocol is less than that of previous ones, making it more practical. We show that the proposed scheme is secure against nonentanglement attacks. The security of the proposed scheme against entanglement attacks is shown heuristically.