One-Way Quantum Symmetric Private Information Retrieval Protocol From A Single Database Server Using NISQ Devices
This protocol allows a user to retrieve a single bit from a classical database held by a server using NISQ quantum devices. It uses Prepare-and-Measure quantum key distribution techniques combined with joint random permutations and parity checks to ensure privacy. The method guarantees secrecy against an eavesdropper, the server, and the user.