Quantum data-hiding scheme using orthogonal separable states

TL;DR

This paper introduces a quantum data-hiding scheme using orthogonal separable states, providing conditions for its construction and demonstrating its practicality in low-dimensional bipartite systems.

Contribution

It presents a novel data-hiding scheme based on orthogonal separable states and offers a sufficient condition for its implementation, enhancing practical feasibility.

Findings

Scheme employs orthogonal separable states for data hiding

Provides a bound on local minimum-error discrimination

Demonstrates practicality in low-dimensional systems

Abstract

We consider bipartite quantum state discrimination and present a quantum data-hiding scheme utilizing an orthogonal separable state ensemble. Using a bound on local minimum-error discrimination, we provide a sufficient condition for the separable state ensemble to be used in constructing a quantum data-hiding scheme. Our results are illustrated with various examples in bipartite quantum systems. As our scheme employs separable states of low-dimensional quantum systems, it becomes more feasible for practical implementation.