187 citations · 841 across the 57 of their papers we have counts for
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Faithful sharing of multipartite entanglement over noisy quantum channels
Soojoon Lee, Sora Choi, Dong Pyo Chi
We present a protocol in which two or more parties can share multipartite entanglement over noisy quantum channels. The protocol is based on the entanglement purification presented…
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…
Entanglement for a two-parameter class of states in quantum system
Dong Pyo Chi, Soojoon Lee
We exhibit a two-parameter class of states , in quantum system for , which can be obtained from an arbitrary state by means of local quantum operati…