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- Korea Advanced Institute of Science and TechnologyKR42 papers
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5 papers · 1 filter
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…
Observation of Mott Transition in VO_2 Based Transistors
Hyun-Tak Kim, B. G. Chae, D. H. Youn +2
An abrupt Mott metal-insulator transition (MIT) rather than the continuous Hubbard MIT near a critical on-site Coulomb energy U/U_c=1 is observed for the first time in VO_2, a stro…
Explanation of small I_cR_n values observed in inhomogeneous superconductors
Hyun-Tak Kim
For an inhomogeneous high-Tc superconductor, band-filling dependence of Josephson I_cR_n product is deduced at T=0 K by means of measurement; this is an extension of the Ambegaokar…
Fano resonance in crossed carbon nanotubes
Jinhee Kim, Jae-Ryoung Kim, Jeong-O Lee +6
We report the observation of the resonant transport in multiwall carbon nanotubes in a crossed geometry. The resonant transport is manifested by an asymmetric peak in the different…
Small Josephson current and product deduced by means of measurement for an inhomogeneous superconductor: Extension of the Ambegaokar - Baratoff theory
Hyun-Tak Kim
For an inhomogeneous high-T_c superconductor, band-filling dependence of Josephson current and Josephson product is deduced at T=0 K by means of measurement; this is an extension o…