120 citations · 727 across the 70 of their papers we have counts for
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Effect of Phase Factor in the Geometric Entanglement Measure of Three-Qubit States
Sayatnova Tamaryan, Hungsoo Kim, Mu-Seong Kim +2
Any pure three-qubit state is uniquely characterized by one phase and four positive parameters. The geometric measure of entanglement as a function of state parameters can have dif…
Effect of Decoherence in Ekert-Protocol
DaeKil Park, Jin-Woo Son, Seong-Keuck Cha +1
We have examined the effect of the decoherence in the Ekert91 quantum cryptographic protocol. In order to explore this issue we have introduced two major decoherences, the depolari…
Maximally entangled three-qubit states via geometric measure of entanglement
Sayatnova Tamaryan, Tzu-Chieh Wei, DaeKil Park
Bipartite maximally entangled states have the property that the largest Schmidt coefficient reaches its lower bound. However, for multipartite states the standard Schmidt decomposi…
Three-Party Entanglement in Tripartite Teleportation Scheme through Noisy Channels
Eylee Jung, Mi-Ra Hwang, DaeKil Park +1
We have tried to interpret the physical role of the three-tangle and -tangle in the real physical information process. For the model calculation we adopt the three-party telepor…
Attack of Many Eavesdroppers via Optimal Strategy in Quantum Cryptography
Eylee Jung, Mi-Ra Hwang, DaeKil Park +3
We examine a situation that eavesdroppers attack the Bennett-Brassard cryptographic protocol via their own optimal and symmetric strategies. Information gain and mutual informa…
Quantum Resonance near Optimal Eavesdropping in Quantum Cryptography
Eylee Jung, Mi-Ra Hwang, DaeKil Park +6
We find a resonance behavior in the disturbance when an eavesdropper chooses a near-optimal strategy intentionally or unintentionally when the usual Bennett-Brassard cryptographic…