449 citations
- Seoul National UniversityKR15 papers
- Korea Advanced Institute of Science and TechnologyKR7 papers
- Institute for Basic ScienceKR5 papers
- Korea Institute for Advanced StudyKR5 papers
- Korea UniversityKR5 papers
- Pohang University of Science and TechnologyKR5 papers
- Korea Institute of Science and TechnologyKR4 papers
- Korea University of Science and TechnologyKR4 papers
- Lawrence Berkeley National LaboratoryUS4 papers
- Dongduk Women's UniversityKR3 papers
- Oak Ridge National LaboratoryUS3 papers
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4 papers · 1 filter
Entangled edge states of corank one with positive partial transposes
Jinwon Choi, Young-Hoon Kiem, Seung-Hyeok Kye
We construct a parameterized family of PPT (positive partial transpose) states of corank one for each . With a suitable choice of parameters, we show that they…
Entanglement swapping secures multiparty quantum communication
Juhui Lee, Soojoon Lee, Jaewan Kim +1
Extending the eavesdropping strategy devised by Zhang, Li and Guo [Phys. Rev. A 63, 036301 (2001)], we show that the multiparty quantum communication protocol based on entanglement…
Convex-roof extended negativity as an entanglement measure for bipartite quantum systems
Soojoon Lee, Dong Pyo Chi, Sung Dahm Oh +1
We extend the concept of the negativity, a good measure of entanglement for bipartite pure states, to mixed states by means of the convex-roof extension. We show that the measure d…
Multipartite entanglement for entanglement teleportation
Jinhyoung Lee, Hyegeun Min, Sung Dahm Oh
The scheme for entanglement teleportation is proposed to incorporate multipartite entanglement of four qubits as a quantum channel. Based on the invariance of entanglement teleport…