65 citations · 174 across the 27 of their papers we have counts for
8 papers · 1 filter
Unified strategy for non-invertible Fisher information matrix in quantum metrology
Min Namkung, Changhyoup Lee, Hyang-Tag Lim
In quantum multi-parameter estimation, the precision of estimating unknown parameters is bounded by the Cramer-Rao bound (CRB), defined via the inverse of the Fisher information ma…
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…
Distributed quantum machine learning via classical communication
Kiwmann Hwang, Hyang-Tag Lim, Yong-Su Kim +2
Quantum machine learning is emerging as a promising application of quantum computing due to its distinct way of encoding and processing data. It is believed that large-scale quantu…
Persistent quantum advantage with definite photon-number states in lossy multiple-phase estimation
Min Namkung, Dong-Hyun Kim, Seongjin Hong +2
Multiple-phase estimation exploiting quantum states has broad applications in novel sensing and imaging technologies. However, the unavoidable presence of lossy environments in pra…
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…