Device Independent Quantum Private Query with Finite Number of Entangled Qubits

Jyotirmoy Basak, Bappaditya Ghosh, Arpita Maitra +1

In a recent work by Maitra et al. (Phys. Rev. A, 2017), it was shown that the existing Quantum Private Query (QPQ) protocols fail to maintain the database security if the entangled…