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arXiv:2502.18656 · Physical Review A

Quantum data-hiding scheme using orthogonal separable states

Donghoon Ha, Jeong San Kim

Published May 2, 2025• 0 citations
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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.

DOI
10.1103/physreva.111.052405

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