S
Seok Hyung Lie
Researcher at Seoul National University
Publications - 20
Citations - 149
Seok Hyung Lie is an academic researcher from Seoul National University. The author has contributed to research in topics: Randomness & Quantum state. The author has an hindex of 5, co-authored 15 publications receiving 91 citations.
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Optimal distributed quantum sensing using Gaussian states
TL;DR: In this article, the optimal setup of distributed quantum sensing using multimode Gaussian states for estimating the average value of phases encoded in the distributed modes was found, and the results demonstrate that multimode entanglement plays an important role in the precise estimation of a global parameter.
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Randomness cost of masking quantum information and the information conservation law
Seok Hyung Lie,Hyunseok Jeong +1 more
TL;DR: In this paper, Modi et al. disproved the geometric conjecture about unitarily maskable states and made an algebraic analysis of quantum masking, showing that a subchannel's mixing probability should be suppressed if its classical capacity is larger than the mixed channel's capacity.
Posted Content
Unconditionally Secure Qubit Commitment Scheme Using Quantum Maskers
TL;DR: Modi et al. as discussed by the authors constructed an unconditionally secure quit-commitment scheme that utilises any kind of universal quantum maskers with optimal randomness consumption, which is distributed by a trusted initializer.
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Limitations of teleporting a qubit via a two-mode squeezed state
Seok Hyung Lie,Hyunseok Jeong +1 more
TL;DR: In this paper, the authors show that the hybrid scheme can be valid for fault-tolerant quantum computing only when the photon loss rate can be suppressed under a certain limit.
Journal ArticleDOI
Optimal Distributed quantum sensing using Gaussian states
TL;DR: In this article, the authors investigated the optimal scheme of quantum distributed Gaussian sensing for estimation of the average of independent phase shifts and showed that the ultimate sensitivity is achievable by using an entangled symmetric Gaussian state, which can be generated using a single-mode squeezed vacuum state, a beam-splitter network, and homodyne detection on each output mode in the absence of photon loss.