4 papers · 1 filter
Complete security analysis of {quantum key distribution} based on unified model of sequential discrimination strategy
Min Namkung, Younghun Kwon
The quantum key distribution for multiparty is one of the essential subjects of study. Especially, without using entangled states, performing the quantum key distribution for multi…
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…
Violation of general Bell inequalities by a pure bipartite quantum state
Elena R. Loubenets, Min Namkung
In the present article, based on the formalism introduced in [Loubenets, J. Math. Phys. 53, 022201 (2012)], we derive for a pure bipartite quantum state a new upper bound on its ma…
Two-sequential Conclusive Discrimination between Binary Coherent States via Indirect Measurements
Min Namkung, Elena R. Loubenets
A general scenario for an -sequential conclusive state discrimination introduced recently in Loubenets and Namkung [arXiv:2102.04747] can provide a multipartite quantum communic…