137 citations · 242 across the 21 of their papers we have counts for
21 papers
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…
GHZ versus W : Quantum Teleportation through Noisy Channels
Eylee Jung, Mi-Ra Hwang, You Hwan Ju +7
Which state does lose less quantum information between GHZ and W states when they are prepared for two-party quantum teleportation through noisy channel? We address this issue by s…
Quantum Teleportation and Von Neumann Entropy
You Hwan Ju, Eylee Jung, Mi-Ra Hwang +6
The single qubit quantum teleportation (sender and receiver are Alice and Bob respectively) is analyzed from the aspect of the quantum information theories. The various quantum ent…
Resonant tunnelling and quenching of tunnel splitting in Wess-Zumino nanospin systems
Soo-Young Lee, Sahng-Kyoon Yoo
We investigate the energy spectrum of the biaxial spin systems with magnetic field along the hard anisotropy axis by using the complex periodic orbit theory. All important features…
Geometrical phase effects in biaxial nanomagentic particles
Sahng-Kyoon Yoo, Soo-Young Lee
The oscillation of tunnel splitting are obtained by geometrical analysis of the topological Wess-Zumino phase on the basis of tunneling paths in biaxial nanomagnetic particles with…
Bifurcation of Periodic Instanton in Decay-Rate Transition
Hyun-Soo Min, Hungsoo Kim, D. K. Park +3
We investigate a bifurcation of periodic instanton in Euclidean action-temperature diagram in quantum mechanical models. It is analytically shown that multiple zero modes of fluctu…