14 citations · 45 across the 14 of their papers we have counts for
14 papers
Distributed variational quantum computing with deterministic entanglement tuning
Ilhwan Kim, Yong-Su Kim, Kwang Jo Lee +3
Distributed quantum computing offers a scalable route to quantum information processing by entangling spatially separated processors. Although gate teleportation enables universal…
Multipartite reference-frame-independent quantum cryptographic communication
Donghwa Lee, Kyujin Shin, Hyang-Tag Lim +2
Reference frame mismatch among communication parties introduces errors in quantum cryptographic protocols. As the number of participants increases, aligning reference frames become…
Frequency-Division Multiplexed CV-QKD System
Jaehyeok Han, Donghyeok Lee, Minseok Ryu +3
We propose a frequency-division multiplexed (FDM) continuous-variable quantum key distribution (CV-QKD) system with enhanced spectral efficiency through optimized channel spacing o…
Entanglement recovery by reversing the effect of noise in quantum repeater
Sewon Jeong, Shrobona Bagchi, Jaehak Lee +4
We propose a method to directly recover the degree of entanglement distributed by entanglement swapping in the presence of noise. Our approach introduces a reversing operation that…
Universal Operational Privacy in Distributed Quantum Sensing
Min Namkung, Dong-Hyun Kim, Seongjin Hong +3
Privacy is a fundamental requirement in distributed quantum sensor networks, where multiple clients estimate spatially distributed parameters using shared quantum resources while i…
Distributed quantum sensing with multi-mode states
Dong-Hyun Kim, Seongjin Hong, Yong-Su Kim +4
Distributed quantum sensing, which estimates a global parameter across distant nodes, has attracted significant interest for applications such as quantum imaging, sensor networks,…
Ensuring superior learning outcomes and data security for authorized learner
Jeongho Bang, Wooyeong Song, Kyujin Shin +1
The learner's ability to generate a hypothesis that closely approximates the target function is crucial in machine learning. Achieving this requires sufficient data; however, unaut…
Robust and bright polarization-entangled photon sources exploiting non-critical phase matching without periodic poling
Ilhwan Kim, Yosep Kim, Yong-Su Kim +2
Entangled photon sources are essential for quantum information applications, including quantum computation, quantum communication, and quantum metrology. Periodically poled (PP) cr…
Encoded-Fusion-Based Quantum Computation for High Thresholds with Linear Optics
Wooyeong Song, Nuri Kang, Yong-Su Kim +1
We propose a fault-tolerant quantum computation scheme in a measurement-based manner with finite-sized entangled resource states and encoded fusion scheme with linear optics. The e…
Implementation of CU gates and its application in a remote-controlled quantum operation
Byungjoo Kim, Seongjin Hong, Yong-Su Kim +2
Recently, remote-controlled quantum information processing has been proposed for its applications in secure quantum processing protocols and distributed quantum networks. For remot…
Entanglement swapping via lossy channels using photon-number-encoded states
Wan Zo, Bohdan Bilash, Donghwa Lee +5
Entanglement shared between distant parties is a key resource in quantum networks. However, photon losses in quantum channels significantly reduce the success probability of entang…
Photonic variational quantum eigensolver using entanglement measurements
Jinil Lee, Wooyeong Song, Donghwa Lee +6
Variational quantum eigensolver (VQE), which combines quantum systems with classical computational power, has been arisen as a promising candidate for near-term quantum computing a…
Optimal multiple-phase estimation with multi-mode NOON states against photon loss
Min Namkung, Dong-Hyun Kim, Seongjin Hong +3
Multi-mode NOON states can quantum-enhance multiple-phase estimation in the absence of photon loss. However, a multi-mode NOON state is known to be vulnerable to photon loss, and i…
Nondestructive discrimination of Bell states between distant parties
Bohdan Bilash, Youngrong Lim, Hyukjoon Kwon +4
Identifying Bell states without destroying it is frequently dealt with in nowadays quantum technologies such as quantum communication and quantum computing. In practice, quantum en…