A Novel Steganography Scheme Using Quantum Hilbert Transform

The main goal of steganography is to transmit hidden messages in legitimate-looking communication messages. Phase-domain information hiding, however, has not been fully explored for quantum systems. This work introduces a finite-dimensional Quantum Hilbert Transform QHT as a unitary phase operato...

Surpassing the PLOB Bound in Continuous-Variable Quantum Secret Sharing Using a State-Discrimination Detector

Continuous-variable quantum secret sharing CVQSS is a promising approach to ensuring multi-party information security. While CVQSS offers practical ease of implementation, its present performance remains limited. In this paper, we propose a novel CVQSS protocol integrated with a...