The quantum private query (QPQ) is a quantum solution for the symmetrically private
information retrieval problem. We study the security of quantum-key-distribution-based QPQ …

Efficient quantum circuits for arithmetic operations are vital for quantum algorithms. A fault-
tolerant circuit is required for a robust quantum computing in the presence of noise …

An efficient cryptography scheme is proposed based on continuous-variable quantum
neural network (CV-QNN), in which a specified CV-QNN model is introduced for designing …

The security of classical cryptography based on computational complexity assumptions has
been severely challenged with the rapid development of quantum computers and quantum …

Anomaly detection, as an important branch of machine learning, plays a critical role in fraud
detection, health care, intrusion detection, military surveillance, etc. An anomaly detection …

This paper proposes an efficient semi-quantum private comparison protocol (SQPC) using
single photons, which allows two classical participants to securely compare the equality of …

The problems of the real-time and high-precision image processing, even the powerful
classical computers and their algorithms, are not satisfactory solution. With the emerging …

A new two-party quantum key agreement (QKA) protocol is proposed based on four-qubit
cluster states. Encoded four-qubit cluster states can be transmitted directly by means of …

Quantum Anonymous Private Information Retrieval (QAPIR) allows a user to retrieve an item
from a database anonymously thus achieving better user privacy. Recently, Khan et al …

Most existing quantum private query (QPQ) protocols can hardly work in the presence of
noise. The user Alice may obtain a false database item in noisy environments and both …