211 citations · 1k across the 46 of their papers we have counts for
46 papers
Entanglement witness and multipartite quantum state discrimination
Donghoon Ha, Jeong San Kim
We consider multipartite quantum state discrimination and show that the minimum-error discrimination by separable measurements is closely related to the concept of entanglement wit…
Bipartite quantum state discrimination and decomposable entanglement witness
Donghoon Ha, Jeong San Kim
We consider bipartite quantum state discrimination using positive-partial-transpose measurements and show that minimum-error discrimination by positive-partial-transpose measuremen…
Atomic indirect measurement and robust binary quantum communication under phase-diffusion noise
Min Namkung, Jeong San Kim
It was known that a novel quantum communication protocol surpassing the shot noise limit can be proposed by an atomic indirect measurement based on the Jaynes-Cummings model. Moreo…
Bound on optimal local discrimination of multipartite quantum states
Donghoon Ha, Jeong San Kim
We consider the unambiguous discrimination of multipartite quantum states and provide an upper bound for the maximum success probability of optimal local discrimination. We also pr…
Enhanced Optimal Quantum Communication by Generalized Phase Shift Keying Coherent Signal
Min Namkung, Jeong San Kim
It is well known that the maximal success probability of the binary quantum communication can be improved by using a sub-Poissonian non-standard coherent state as an information ca…
Indirect Measurement for Optimal Quantum Communication Enhanced by Binary Non-standard Coherent States
Min Namkung, Jeong San Kim
It is well known that the Helstrom bound can be improved by generalizing the form of a coherent state. Thus, designing a quantum measurement achieving the improved Helstrom bound i…