11 papers
Sufficient conditions for additivity of the zero-error classical capacity of quantum channels
Jeonghoon Park, Jeong San Kim
The one-shot zero-error classical capacity of a quantum channel is the maximum amount of classical information that can be transmitted with zero probability of error via a single c…
(2,m)-threshold quantum data hiding
Donghoon Ha, Jeong San Kim
We consider multiparty quantum state discrimination and present a multiparty quantum data-hiding scheme for one classical bit to be shared among multiple parties. In the proposed s…
An Initialization-free Quantum Algorithm for General Abelian Hidden Subgroup Problem
Sekang Kwon, Jeong San Kim
Hidden Subgroup Problem(HSP) seeks to identify an unknown subgroup H of a group G for a given injective function f defined on cosets of H. Here we present an initialization-free qu…
Factorizability of optimal quantum sequence discrimination under maximum-confidence measurements
Donghoon Ha, Jeong San Kim
We consider the discrimination of quantum sequences under maximum-confidence measurements and show that the optimal discrimination of a quantum sequence ensemble can always be fact…
Quantum data hiding with two-qubit separable states
Donghoon Ha, Jeong San Kim
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…
Factorizability of multi-party quantum sequence discrimination under local operations and classical communication
Donghoon Ha, Jeong San Kim
We consider multi-party quantum sequence discrimination under local operations and classical communication(LOCC), and provide conditions under which the optimal LOCC discrimination…