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Main Authors: Ha, Donghoon, Kim, Jeong San
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2512.15095
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author Ha, Donghoon
Kim, Jeong San
author_facet Ha, Donghoon
Kim, Jeong San
contents We consider the discrimination of two-party quantum states and provide a quantum data-hiding scheme using two-qubit separable states. We first provide a bound on the optimal local discrimination of two-party quantum states, and establish a sufficient condition under which a two-party quantum state ensemble can be used to construct a data-hiding scheme. We illustrate this condition with examples of two-qubit state ensembles consisting of two orthogonal separable states. As our data-hiding scheme can be implemented with separable states of the lowest possible dimension, its practical realization becomes significantly more attainable.
format Preprint
id arxiv_https___arxiv_org_abs_2512_15095
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Quantum data hiding with two-qubit separable states
Ha, Donghoon
Kim, Jeong San
Quantum Physics
We consider the discrimination of two-party quantum states and provide a quantum data-hiding scheme using two-qubit separable states. We first provide a bound on the optimal local discrimination of two-party quantum states, and establish a sufficient condition under which a two-party quantum state ensemble can be used to construct a data-hiding scheme. We illustrate this condition with examples of two-qubit state ensembles consisting of two orthogonal separable states. As our data-hiding scheme can be implemented with separable states of the lowest possible dimension, its practical realization becomes significantly more attainable.
title Quantum data hiding with two-qubit separable states
topic Quantum Physics
url https://arxiv.org/abs/2512.15095